Event Activities

Get ready to tinker!
Try a variety of hands-on science, technology, engineering and mathematics activities sure to spark your creativity and imagination. 

FREE Make & Take Activities (K-12)*

Paper Rockets
10-9-8 Blastoff! Launch your own handmade rocket across the park!
Download instructions
View How-To Video


Tink's Dragonfly Helicopter
Engineer a replica Tink's dragonfly friend, Demoiselle, or his friend Flutter, the butterfly. 
Sponsored by Stay Pleasant Hill

Mind-Blowing Automata Mech
Build your own moving mechanical toy to take home!

Out of this World!
Reusable Canvas Bag

Explore the fun world of fabric arts decorating your reusable bag (provided*).

*Make & Take activity supplies limited to first 500 guests.



Tinkering and thinking can sure run down your batteries. Tink is excited to announce that the Diablo Sea Cadet Cafe will be open inside the Senior Center to help you refuel!















Get ready to think & tink! 
Marvel at the latest

mind-blowing innova-

tions and scientific

wonders from local makers, entrepreneurs, businesses, non-profits and educators.  


Special Activities: 
Help make a giant Balloon Mural with Airigami inside Senior Center!

Construct a ginormous castle fort and village out of cardboard outside in the park! 

More exciting exhibitors & activities:

(see map for location at event)


Mike Meneghetti: Tornado Vortex and Smoke Ring Cannon 3


Contra Costa County Library: Robot Petting Zoo & VR Arcade


Senior Center Club: Evolution of Tech

Bay Area Droid Builders: R2-D2


Spoken Cloth Printing Technology 


Play-Well TEKnologies: STEM LEGO Activity

Snapology: LEGO Spinart and Crimper

Kinetic Steamworks: Printing Press


College Park High School: FalconX Robotics


Valley View Middle School: Linkbot RoboPlay

The Ruth Bancroft Garden

Friends of Pleasant Hill Creeks 

Tapigami: Tape Sculptures

Ambit Energy: Team Hope

Pleasant Hill Lions Club: Vision Screenings

Aloha Mind Math: Make an Abacus

Bot Bash Robot Battling

Diablo Valley College: MESA Program


Rec & Park Kidstop: Slime and More

Center of Gravity Preschool

Lizard Kings and Other Things

Lindsay Wildlife Experience: Live Animal Ambassadors

PH Rec Preschool: STEM Adventures

PH Rec Aquatics: Flower Chromatography

Lunar Landing Preschool

Tinkergarten: Water Play

Central Contra Costa Sanitary District

Rotary Club of Pleasant Hill: Rope Making

Bike Pleasant Hill: Bike Tune-up


Metal & Glass Mixers: Mobile Blacksmith

Maker Project Lab: Electric Power Racing Series Karts

Rocket Launchpad

BSA Troops 239 & 429: Make a Catapult


Hover Analytics: Aerial Drones











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