cans, and use pliers to flatten any sharp points.
step 2: lay the end of the can on the tracing paper, and draw circles with a pencil.
step 3: lay the marked tracing paper on a picture of a constellation in a book, and trace a constellation inside of each circle, using dots to represent stars. if a constellation won't fit in the circle, you can try drawing it free hand.
step 4: cut out the circles, and use a pin to poke a hole where each star is marked.
step 5: turn each circle over so the constellation is backward, and tape one to the closed end of the steel can.
step 6: use 