Shower steller prints on envelopes, paper, and anything that needs a little holiday sparkle.
For more detail, carve into an art gum eraser with an X-Acto knife (parents or teens only).

Cut the edges off the Styrofoam tray, then have your child draw a variety of stars on it with a pencil. Using scissors, she can cut out the stars.
To make each stamp, glue one star to the end of a film canister, spool or cork, and let dry.
Start stamping!