Compare the Packages

Pick the package that fits your cosmic crew

Three tiers, one slime-tastic party. See exactly what's included — duration, kids, supplies, cleanup — then book in under 2 minutes.

Curious what party day looks like? →
Our Packages

Starter, Deluxe, or Ultimate

Every package includes supplies, hands-on host time, aprons, take-home slime for each kid, and 100% setup + cleanup.

Starter
$199 / party
  • Up to 5 kids
  • Ages 4–7
  • 1 hour hands-on host time
  • All supplies: glue, activators, colors, glitter, basic mix-ins
  • Aprons provided
  • 1 take-home slime per kid
  • Full setup and cleanup
  • Up to 5 kids
  • Ages 4–7
  • 1 hour hands-on host time
  • All supplies: glue, activators, colors, glitter, basic mix-ins
  • Aprons provided
  • 1 take-home slime per kid
  • Philly suburbs — add a small travel fee
Select Starter →
Most Popular
Deluxe
$299 / party
  • Up to 7 kids
  • Ages 5–10
  • 1.5 hours hands-on host time
  • All supplies + premium cosmic mix-ins
  • Aprons provided
  • 1 take-home slime per kid in a labeled container
  • Themed decor (galaxy, glow, unicorn, rainbow, custom)
  • Full setup and cleanup
  • Up to 7 kids
  • Ages 5–10
  • 1.5 hours hands-on host time
  • All supplies + premium cosmic mix-ins
  • Aprons provided
  • 1 take-home slime per kid in a labeled container
  • Themed decor (galaxy, glow, unicorn, rainbow, custom)
  • Philly suburbs — add a small travel fee
Select Deluxe →
Ultimate
$399 / party
  • Up to 10 kids
  • Ages 6–12
  • 2 hours hands-on host time
  • Everything in Deluxe + glow-in-the-dark option
  • Aprons provided
  • Slime goodie bags for every kid
  • Birthday kid gets VIP extras
  • Full setup and cleanup
  • Up to 10 kids
  • Ages 6–12
  • 2 hours hands-on host time
  • Everything in Deluxe + glow-in-the-dark option
  • Aprons provided
  • Slime goodie bags for every kid
  • Birthday kid gets VIP extras
  • Philly suburbs — add a small travel fee
Select Ultimate →
Side-by-Side

Every tier at a glance

Quick comparison so you can scan without opening each card.

What you get
Starter
Deluxe
Ultimate
Duration
1 hour
1.5 hours
2 hours
Age range
4 – 7
5 – 10
6 – 12
Kids
Up to 5
Up to 7
Up to 10
Host time
1 hr hands-on
1.5 hr hands-on
2 hr hands-on
Supplies
Glue, activators, colors, glitter, basic mix-ins
Everything in Starter + premium cosmic mix-ins
Everything in Deluxe + glow-in-the-dark option
Take-home
1 slime per kid
1 slime per kid in labeled container
1 slime per kid + slime goodie bags
Cleanup
Full setup & cleanup
Full setup & cleanup
Full setup & cleanup + birthday-kid VIP extras
Add-ons
Available on request
Available on request
Available on request
Mobile parties across the Lehigh Valley — Allentown, Bethlehem, Easton, and surrounding areas.
Add-Ons

Level up at the booking step

A-la-carte upgrades — request them when you book and we'll confirm pricing before the party.

🌊

Extra take-home slime jars

$5 / jar

Kids keep wanting more? Add extra pre-made jars for each guest to take an even bigger haul home.

🎨

Themed decor upgrade

$25

Galaxy, glow-in-the-dark, unicorn, rainbow — or go custom with a theme that fits your kid.

⏰

Extended hour

$50

Need more slime time? Add a full extra hour of guided mix-and-make so the fun doesn't end early.

Add these in the notes field at booking — we'll confirm pricing before the party.

Package FAQ

Quick answers before you book

Which package fits a kid turning 7 or 8?
Deluxe is the sweet spot for that age group. It runs 1.5 hours, hosts up to 7 kids, and includes themed decor that kids that age actually notice. Starter skews younger; Ultimate fits an older crowd or a bigger guest list.
Do you ever run over the host time?
Almost never — we scope the session to fit comfortably inside the host time so the kids aren't rushed. If we're close to the end and kids are still mid-creation, we'll wrap up what's started rather than leave them hanging.
Can I switch packages after booking?
Yes, as long as it's at least 7 days before your party. After that the deposit terms lock in, but we'll always work with you if something changes.
Where does cleanup end?
Your space is the same when we leave as when we arrived. We pack out every tool, container, and stray slime bit — all you need to do is enjoy the party.
Do you travel to Philly suburbs?
We're launching in the Philly suburbs soon — we're finalizing our route and dates now. Join the Philly waitlist and we'll reach out the moment slots open in your area.

Not sure what a Cosmic Slime party actually looks like from the host's side?

See how a slime party works →
Ready to lock in your date? Book in under 2 minutes → Book Your Party
Birth-Month Perks

A party every month, with perks that grow with you

Three tiers of recurring slime party perks — priority weekend slots, free birthday-month add-ons, sibling discounts, and more. Recurring billing is finalized by the owner after signup.

See membership tiers →
Book Your Party →