THAMES & KOSMOS

Let’s rock and roll! Amp up your rock collection and explore the secrets of geology with the Thames & Kosmos Rock Tumbler! This custom-designed...

Keep on rockin’ and rollin’ with this refill pack for the Thames & Kosmos Rock Tumbler. This pack includes a one-pound assortment of natural r...

Want to give your marbles an extra kick up an incline? Or block the track so that the next marble must take a completely different path? With the S...

The coolest new word game on the block masterfully combines skill, luck, and speed into a clever, family-friendly game that’s sure to be an instant...

Build six different air-and-water powered models Harness the power of air and water to make things move! Build water-rocket cars, jet-propelled boa...

An apple that defies gravity and walks a tightrope — what would Isaac Newton have thought? Build a cute apple robot that walks along a tightrope. H...