Soda can wind spinner
Battery Holder for Double A, Triple A, C and D cells-batteries. Cheap, Good, Easy
Magic Wand TV Remote
Tools and Materials for Arduino
Welcome to Arduino
Machine Sewing Class
30x 10' pvc pipes would be the right way to read it. At 300' that would be why he says there will be waste.
Collapsible Wood Burning Camp Stove (On a Budget!)
Make your clothes talk for you!