DIY High-Speed Book Scanner from Trash and Cheap Cameras by daniel_reetz

Mechanical expanding cardboard lamp - This way up! by Euphy

Desktop energy seed lamp by robomaniac

Wind powered Composter - The Green Twist , Exactly by kdunner

Addressable Milk Bottles (LED Lighting + Arduino) by Nachimir

Build a foundry and sand-cast aluminum. by Fenris The bbw

Press Aluminum Cans into Ceiling and Wall Tiles by robbtoberfest

aNtistic design by somebullcrap

Solar DS "Light" Redone and Improved by dark sponge

RC Nerf Tank by travis7s

Charge Your Cellphone Using Wasted Heat (and Build a Steampunk Wall-E) by splitreaction

Cardapult the Business Card Catapult by clide

Recycled 55 Gallon Barrel Chair by Monkeybrad

Steampunk Segway ( Legway ) by bdring

down and dirty screenprinting for under 10$ by woodenshoespress