Shoe box
Paper towel roll
(optional) plastic strings
1. Cut a hole on the short side of the shoe box. make the hole a size that the paper towel roll fits in snug.
2. On the bottom of the shoe box, cut a circle out.
3. (optional) Tape the plastic strings at the end of the shoe box, and all the way up the paper towel roll.
From emily, age 11, maryland, usa