Speks Magnetics Balls
High-intensity magnetic balls for molding into 3D shapes.
getspeks.com, $24.95
Magic Penny Magnet Kit
Build works of art with a couple of magnets and coins.
scientificsonline.com, $25.95
tinyTesla Musical Tesla Coil Kit
A create-your-own electricity kit that connects to your laptop and plays MIDI music.
thinkgeek.com, $229.99
Pendulum Wave, Desktop Model
Steel balls that form a wave pattern to simulate phases, beats and frequencies.
scientificsonline.com, $44.95
LightBox Puzzle
The puzzle is figuring out how to turn the lights off.
uncommongoods.com, $85
