Tape or glue a piece of construction paper around the paper towel roll. Decorate it with markers, crayons, colored pencils or finger paint. If you like, glue other decorations to it, such as glitter or feathers.
Trace each end of the paper towel roll onto a piece of construction paper, creating two circles. Tape one of the circles to the bottom of the paper towel roll and save the other for later.
Cut out two pieces of aluminum foil, about 18 inches long and 6 inches wide. Roll and crunch each foil piece into a long, thin, snake-like shape. Twist these aluminum foil "snakes" into a spring shape and drop them into the paper towel tube.
Drop 1/2 cup of dried beans, lentils or rice into the paper towel roll.
Tape the other construction paper circle onto the open end of the paper towel roll.