Stocking stuffer or add-on
Lite Kit
$16.50
A battery holder, 15 LEDs and a tub of conductive dough. Also the easy add-on to a bigger kit: every builder needs a battery holder, so a Lite Kit lets two kids share one Deluxe Kit.
See the Lite KitGift guide
Circuit kits that turn play dough into light-up creations. Kids push LEDs, buzzers and motors into conductive dough and watch them light up, beep and spin. No soldering and no screens. Recommended for ages 8 and up.
Every kit works with the same dough and parts, so it is easy to add on later.
Stocking stuffer or add-on
$16.50
A battery holder, 15 LEDs and a tub of conductive dough. Also the easy add-on to a bigger kit: every builder needs a battery holder, so a Lite Kit lets two kids share one Deluxe Kit.
See the Lite KitBest first kit, ages 8+
$38.50
Our best seller. Light and sound with 25 LEDs, a buzzer, 4 tubs of dough and 3 project guides. Everything for the winter projects below.
See the Standard KitFor siblings or big builders
$82.50
Adds a motor with fan, a switch, two buzzers and 8 big tubs of dough. Sharing with a sibling? Add a Lite Kit so each builder has a battery holder.
See the Deluxe KitFor older kids and middle schoolers
$100.00
A solar panel, wind turbine and super capacitor for stored energy, with the 44-page Exploring Green Energy guidebook.
See the Green Engineering KitAdd-on for any kit
$25.00
Seven colors of conductive dough plus white insulating dough. A great refill for anyone who already has a kit.
See the Dough KitFor a teacher, club or homeschool group
$300.00
10 stations in a carrying case, enough for a class of up to 30. Add 2 Dough Kits for dough.
See the Group KitGift tips
Free step-by-step projects for snow days and winter break. Each one comes with a printable instruction card.
Light-Up Snowman
Stack a snowman from white insulating dough and light him up with LEDs.Learn: how insulating dough keeps a circuit from shorting outFree steps and printable card
Reindeer with a Glowing Nose
Build a reindeer with a scarf and a nose that lights up.Learn: LED polarity: the long leg goes to the red wireFree steps and printable card
Holiday Wreath
A green dough wreath with four LEDs glowing at once.Learn: parallel circuits, with every LED connected the same wayFree steps and printable card
Night Sky Stars
Shape dough stars and connect them with an LED to light up a winter sky.Learn: how an LED closes the gap to complete a circuitFree steps and printable card
Cozy Campfire
Four LEDs make a glowing campfire you can build indoors.Learn: lighting several LEDs from one battery holderFree steps and printable card
Dough Flashlight
Build a flashlight for long winter nights.Learn: why a light needs a complete circuit to turn onFree steps and printable card
These projects use LEDs, a battery holder, and conductive and insulating dough, so they work with the Standard, Deluxe or Green Engineering Kit. Dough colors are suggestions, so use what you have. See all 45+ free projects
The Standard Kit is our most popular first kit. It has everything to build light-up and buzzing creations, plus 3 project guides. For a smaller gift or a stocking stuffer, start with the Lite Kit.
The Deluxe Kit adds a motor, a switch and more dough for bigger builds. For older kids who like science experiments, the Green Engineering Kit covers solar, wind and stored energy.
Yes. The dough and parts go a long way, but each builder needs their own battery holder. Add a Lite Kit to any bigger kit for a second battery holder, 15 more LEDs and another tub of dough.
No. Each battery holder takes 4 AA batteries. You can add AA batteries to your order.
The dough is non-toxic, and the kits are tested to the ASTM F963-23 toy safety standard. It contains wheat (gluten). Keep the conductive dough sealed in its tub so it does not dry out.
Try the free projects on this page: a light-up snowman, a reindeer with a glowing nose, a holiday wreath, night sky stars, a campfire and a flashlight. Each has step-by-step photos and a printable card.