Contraption 50 Plank Set Family let this glass inspire deep

let this glass inspire deep thoughts on botanicals – deadly and otherwise

find another disc that's different by changing only one of three traits

Diversify your food web to maximize your bonuses

Thermometer

Creative Play: Stack and configure in hundreds of ways

Contraption 50 Plank Set Family let this glass inspire deepContraptions are ramps and chutes, tracks, and towers, tunnels, funnels, and more simply by stacking the planks: no glue or connectors, just gravity, and imagination. Make the ball roll, twist, bump, bounce, hop and stop through your contraption. Two specially designed KEVA balls provide bouncy action and surprising moves. The contraptions guidebook shows you how. Maple trees that grow in the cold environment of Maine have an exceptionally tight grain