Thames & Kosmos

Ooze Labs: Visible Human Body With Squishable Organs

Discover the inner workings of the human body! Use the toy forceps to carefully remove the squishy organs, muscles, and bones from the clear body shell, learning the location and function of each one...

Optical Illusions

Astonish yourself with optical illusions and amazing visual phenomena as you explore human perception and the physics of light. Experiment with light and the color spectrum by building a color wheel,...

Pinball Machine Maker: Gumball Rally

The sweetest pinball machine ever! Build a pinball machine that uses edible gumballs as the pinballs. First, follow the step-by-step instructions to assemble the machine. Then lay out the targets and...

Planetarium Projector

Turn your bedroom into your very own planetarium theater! Illuminate a darkened room by casting projections of the stars in the night sky and space-themed images across the ceiling and walls. This...

Rainbow Gummy Candy Lab

Unicorns, clouds, and rainbows ... oh my! Make your own delicious, fun gummy shapes using a gelatin mixture: Pour it into the included mold and concoct a spectrum of flavors and colors to personalize...

Rebotz Halfpipe The Shredding Skater Robot

Ready to shred! A few clicks and Halfpipe is ready to cruise through your room on its skateboard base, using an umbrella and broom to propel itself forward.  + Fast and easy to build +...

Rebotz Knox The Wacky Walking Robot

Knock, knock, knocking on wooden floors, this wacky walking ReBot is pieced together from a tennis racket, hammer, and the rear wheels of a tricycle. + Fast and easy to build + Demonstrates...

Rebotz: Pogo - The Jammin' Jumping Robot

Spring into action! This jumping robot is made from the tracks of an old snowmobile, a waffle iron, and some rubber bands.  + Fast and easy to build + Demonstrates cams, springs, and motors in...

Rebotz: Scootz - The Cranky Crawling Robot

Robots ahoy! This crawling robot is cobbled together from two halves of an old pirate ship’s wheel, and scoots along the floor on a repurposed iron and snow ski. + Fast and easy to...

Roborails: The Robot Monorail System

Explore the future of transportation with RoboRails! This compact robot balances on a single wheel and glides along a monorail track thanks to its fast-moving internal gyroscope and monowheel. A...

Robotics: Smart Machines - Super Sphere

Build an awesome, nine-inch-diameter, rolling robotic sphere and six other robot models. Drive your robots using the remote-control interface in the included app, which you can install on your tablet...

Rubber Band Racers

It's no stretch to imagine the excitement of five racing machines, powered by the stored energy in everyday rubber bands. Ultralight plastic and bamboo parts, from wheels to propellers to axles, are...