San Mateo

DIY Reservations

Walk ins welcome but RSVP's are highly encouraged on holidays and weekends.


Birthday Parties

Celebrate in our kitchen! We. have three party packages to choose from.

Party Packages

Book Now »


We host workshops in our stores. Whether you want to hone in on new skills, make a cool seasonal slime or have a fun team outing.

Coming Soon


DIY Slime Experience

DIY Session:
$ 25


Pre Made Slimes 4oz
Pre Made Slimes 6oz
Slime Star Stuffies
Slime Star Squishmallows

Parties, Workshops & Events

Deposit to reserve the date
$ 75

1. Dedicated party host(s) for the group
2. Slime cupcake for the celebrant. We sing using the cupcake
3. A special birthday label with the celebrant name for the jars
4. Diplomas for all the guests

Base Fee Pricing

10-15 Chefs $100

16-20 Chefs. $155

21-15 Chefs. $175

Party Packages

Guests make 1 slime each. Choice of Clear or Thick & Glossy. Please read party FAQs before booking

Guests make 1 slime each. Choice of any of our 6 varieties. Please read party FAQs before booking

Guests make 2 slimes each. Guests will make a clear slime and make a second slime of any of our 6 varieties. Please read our party FAQs before booking


Hillsdale Mall
228 Hillsdale Mall

(408) 497-2223


Monday - 12am to 7pm
Tuesday - 11am to 7pm
Wednesday -11am to 7pm
Thursday - 11am to 7pm
Friday - 10am to 8pm
Saturday - 10am to 8pm
Sunday - 11am to 7pm


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How long are the DIY Sessions?

20-25 minutes but you're welcome to stay and play longer if there isn't a waiting list.

What is the age group for DIY?

Slime is for all ages! We generally recommend a minimum of age of 4 but there is no age minimum and definitely no age maximum. It's great for sensory even for seniors.

How do parties Work?

Parties are 1.5 hours. We require a minimum of 10 chefs to participate. We have two slots on weekends. A morning and an evening slot. See party FAQs for more information.

Are there any nut ingredients?

No, we don't have any nut based products. Slime is made from different types of glue, borax solution, lotion, shaving cream, and clay along with scented oils and colored dye and pigments.

What are the minimums to host a party?

We require a minimum of 10 slime chefs for a party. If you have less than 10, please contact us and we can help you.

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