What You’ll Need:
- short cardboard tube
- paint or paper
- glue (if youre decorating with paper)
- scissors
- ruler
- waxed paper
- rubber band
- pencil

How to Make It:
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Decorate a short cardboard tube with paint or paper. Let it dry.
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Cut a 4-inch-square piece of waxed paper. Place it over one end of the cardboard tube, and use a rubber band to hold it in place.
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Make two or three pencil marks along the top of the tube. Poke a hole in the tube at each mark.
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Hum into the open end of the tube, and play the hummer by covering and uncovering the holes with your fingers.










