Harry Potter Potions Class: Luck Potion

What’s been your most fun themed birthday party? Ours is definitely Harry Potter. And, what Harry Potter party could be complete without a Harry Potter Potions class? This Felix Felicis slime, or “Luck Goo” was such a fun activity. The kids loved mixing their own luck potion, because who doesn’t love making slime? (Okay, I don’t, but my kids and their friends sure do!) This idea comes with free printable ingredient and potion labels, a recipe scroll, and a potion cupboard sign. It’s everything you need to turn boring slime into the perfect Harry Potter party activity. (Say that five times fast!)

This is perfect for a Harry Potter Potions class! Regular slime becomes "Luck Goo," complete with a recipe scroll, ingredient labels, and more. This looks like so much fun! {OneCreativeMommy.com} #harrypotterpartyideas #freeprintables #harrypotter

Harry Potter Potions Idea and Printables

In the past, I have shared lots of ideas for a Harry Potter party. In fact, they’re probably some of the most popular posts on my blog. The original party was for my oldest daughter, but it turns out that the love for all things Harry Potter runs in the family! My youngest daughter wanted a Harry Potter birthday party, too. Since her party would be for older kids than the first party (and since there are so many new fun ideas out there), we changed her party up a bit.

Probably the most fun addition was a Harry Potter potions class. Of course, the class was taught by none other than Severus Snape, and the kids made their own luck potion. Remember the liquid luck potion (Felix Felicis) from Harry Potter and the Half-Blood Prince? That potion could be swallowed for a day of good luck. Well, we improved the potion by making it a topical goo potion that can be used over and over. Really, it’s slime — Harry Potter style.

Dad was such a good sport to dress up as Severus Snape for our Harry Potter party! He taught the potions class. {OneCreativeMommy.com} #harrypotterparty #severussnape

You might be wondering how to get Severus Snape to attend your party and teach a class. All you need is this wig (a women’s wig I snagged for half off after Halloween), a cape (lovingly made by Grandma for a vampire costume a few years ago), any old black clothing, and a dad who’s a really good sport! Honestly, we could not stop laughing. Since my husband usually has a beard and shaves his head, this look was quite a surprising change. The wig was supposed to look like this 50’s flip hairstyle, but inexpensive wigs never look like they’re supposed to. It turned out to work perfectly for Snape.

Felix Felicis Luck Goo Potion Recipe

Now, onto the potion! Here’s a look at the potion scroll you can print and give to the kids to use as a recipe.

Harry Potter Luck Goo Potion Printable -- Felix Felicis Luck Goo Recipe {OneCreativeMommy;.com} Free printable scroll, ingredient, and potion labels #harrypotterpotions #harrypotterpartyideas

Here’s the Harry Potter potions recipe translated into real ingredients:

Felix Felicis Luck Goo


Potion Ingredients for Liquid Luck Potion
  • 4 oz dragon claw ooze (Elmer’s White Washable School Glue) I used a glass bottle with a cork, but it didn’t hold enough, so I put a label on the bulk-sized school glue bottle as well.
  • 1/2 T powdered occamy eggshell (Baking Soda)
  • 1 T squill bulb juice (contact lens solution — make sure it contains boric acid and sodium borate, or the slime will not work) Either of the two solutions below should work. I put some in a McCormick Lemon Extract bottle because it looked cool, but for practical purposes, I also labeled the original contact solution bottle.

  • 2-3 drops of chameleon blood (food coloring) I planned on all of the potions being yellow, but the party guests had other ideas and used all different colors of food coloring.
  • A dash of pearl dust (glitter) Fine glitter doesn’t really show up, so use the regular stuff.
Closeup of Potion Ingredients for Liquid Luck Potion


  1. Add the dragon claw ooze and powdered occamy eggshell to your cauldron and mix well.
  2. Add food coloring and pearl dust and mix well.
Add a dash of pearl dust -- closeup of fun measuring spoons
  1. Once your potion has turned light yellow, add the squill bulb juice and mix well.
  2. When your potion begins to pull away from the sides of the cauldron and it becomes difficult to stir, pour the Luck Goo onto a flat surface and knead well until the consistency becomes smooth. The goo will become easier to mix as it warms.
  3. If the goo is too sticky, add more squill bulb juice (¼ T).

If you want the adorable dash, pinch and smidgen measuring spoons, you’ll find them here. I received them as a gift, and they are so much fun!

How to Use

To activate, knead the goo for ten minutes.

Luck will last approximately one hour.

Be sure to put a sign on your pantry to keep your guests from getting into Professor Snape’s potion ingredients!

Severus Snape's Potions Cupboard printable

Download Your Free Harry Potter Potions Printables

Ready for your printables? Click the download link below to open the printable pdf file. You can print the file from there or save it to your computer to print later.

Click to download file from One Creative Mommy

A Few Tips for Making the Potions

To make measuring the glue easy, prefilled 1 plastic cups per guest with 4 ounces of water. Next, mark the waterline with a sharpie. Then, empty and dry the cups. When it’s time for your Harry Potter potions class, give each student one of the cups to use as their cauldron. To measure the glue, all they have to do is pour it to the line on the cup.

Realistically, many of the kids at your party will have made slime (many times) before. If they want to add the ingredients in a different order or with slightly different proportions, trust their judgment. When it comes to making slime, I’ve found that the kids know much more than I do! (And certainly more than “Professor Snape.”) If they’ve never made it before, stick with the recipe.

When the kids finish their potions, you’ll need a special container to hold their potions. For my sample potion, I put it in this cool glass lightbulb jar. It looks really cool, but I wouldn’t recommend using it for the kids. It’s nearly impossible to get the slime out once you’ve put it in. (I did get it out, but not very easily!)

Felix Felicis homemade potions, ready for the kids to take home {OneCreativeMommy.com}

We sent our potions home in these Rubbermaid Take-Along containers. They cost just under a dollar per kid. If you’d rather do a much cheaper option (don’t know why I didn’t think of it before the party)

Thanks for stopping by today. Look for more new Harry Potter Party ideas coming soon! Questions? Comments? Bring them on!

If you liked my Harry Potter Potions Class idea, you might like these ideas as well.

The images below are linked to posts, so click on them.

Harry Potter Party Invitations Delivered by Owl Post {OneCreativeMommy.com} #harrypotter #birthdayparty #halloweenparty
The best ideas for the ultimate Harry Potter Party {OneCreativeMommy.com} #harrypotterparty #partyideas #harrypotter #kidsparty #halloweenparty
Cool printable spy party invitations. Just fill in the info, and you're ready to go! {OneCreativeMommy.com} Perfect for spy and secret agent birthday parties. Personalization available.


  1. This is such a great idea for an interactive fun party! I love how you’ve labeled all the ingredients and how everything looks like a Harry Potter wizardry class. Dad makes a perfect Severus Snape, haha :)

    • I love your ideas!!! Everything is so adorable! I make junk journals to sell on Etsy and was wondering if you would mind if i included your printables in a Harry Potter journal I’m hoping to make soon! It would be adorable to tuck your potion recipe in one of the pockets! 😊

  2. You have created some outstanding potions here. The details are great and so so fun.
    Ging to pop along to the other posts now. So glad that I came across your site.

  3. This is so cool. It must be so fun, I’ll certainly have to try making potions with my nieces. My sister-in-law is a party planner in Singapore and I’d love to send this through to her to see what she thinks.

  4. How fun! I can see kids loving this. I might have to make some of these even though I admit, I don’t know much about Harry Potter!

  5. What a cute and fun little project!!

  6. How amazing! Would it be silly to do this for my husband’s 30th? Clever idea!

  7. Alvern @ Success Unscrambled says

    I really like the old looking labels and the containers that you use. They really add a bit of character to the scene. I am wondering where you get a jar that looks like a light bulb, I don’t think I ever saw one quite like it.

    • Thanks, Alvern. That is a cool jar. There is a link to it on Amazon in the paragraph under the closeup pick of the lightbulb. It originally had an air plant in it. It’s such a fun shape.

  8. This is a great idea for a girls night event. I love the way these jars look.

  9. I’m so in love with this idea! I’m a huge Harry Potter fan, so I love doing crazy things like this. Cute packaging!!! So creative!

  10. I absolutely love this! I am a HUGE Harry Potter nerd and a friend of mine is having a Harry Potter party and this would be PREFECT!

  11. Wow, this is so much fun! I am a huge Harry Potter fan (ven at this age) and I think I am going to try this soon.

  12. I liked how you have labeled all the items. Thanks for sharing creative ideas for the party. Children would love it.

  13. What a great idea, all your Harry Potter craft ideas are fab.

  14. I love this idea! My kids sadly aren’t really into Harry Potter (I KNOW! IT’S SO SAD!!), but they would still enjoy creating and playing!

  15. This looks like such a fun idea for kids! Love the theme of Harry Potter for a birthday party too!

  16. My nieces and nephew would love this. They are big Harry Potter’s fans and would find it fun to make some potions.

  17. This is so adorable and how hysterical that your husband dressed up. What a good sport! I can’t wait to be able to do this kind of stuff with my daughter when she’s older.

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