Bottle Cap Rattle Materials: - small block of wood - 1 thick nail or awl - 2 long nails - 6 bottle caps (the old metal kind, you might need to go to a flea market or antiques store for these) - hammer Method: Have a big person help you make holes in the bottle caps using the thick nail and hammer. Place 3 bottle caps on each of the long nails and hammer them into the block. Leave enough room so the caps can slide up and down. SHake the rattle in time to some music.