I thought I posted about this last year, but evidently not. American Science & Surplus (yes, A.S.S. har ) has all kinds of cool stuff. I love getting Christmas presents for the kids from them. Last year Santa brought E&B a laser pointer, a pocket microscope, and shrinky dink film. This year in the sleigh (so far) are a 3D drawing pad (complete with glasses), a can crusher, a 10' long sheet of adhesive dry erase board, a bag of rocks for experiments, and a simple telescope. They also have marshmallow guns, potato guns, robot parts, hexabugs, gyroscopes, and all manner of tubes, bearings, wiring and gas masks. And French riot helmets! Hydraulic cylinders! Solar-powered flashlights! So much fun stuff you'll have a hard time choosing. Not a paid review or anything; just passing along the info.