Ice cube as a caulk tool. Run it down the caulk line, applying steady pressure. The film of water that forms between the ice cube and the caulk makes a smooth, professional finish, and you can melt the cube in your hand to get any bead shape you want.
Pump Fire Drill - The Iroquois invented this ingenious pump drill, which uses a flywheel to generate friction. The crossbar and flywheel are made of hardwood; the spindle and fireboard are made from softwoods (as in the ha