Create a playtime raft that really floats with just a few natural twigs from your own backyard. Make It: Have your kids search your backyard for twigs. Use outdoor trimmers to cut the twigs to the same size. Using jute or hemp cord, weave the ends of the twigs on both sides to tie them together. Attach a twig in an upright position for the mast. Cut a sail from colorful felt. Fold the felt in half, punch a hole in the middle, and slide it over the mast.