To make your own, you will need the following supplies:
Black foam board (got mine at Dollar Tree for $1)
Box cutter
Circular shaped object to cut around (I just turned my office trashcan upside
down and started cutting!)
8 ball shaped objects to represent moon (ideas: ping pong balls [use black
sharpie], Styrofoam balls (paint with black acrylic paint and sponge brush, wooden
balls, etc....)
Hot glue gun
1 ball to represent the Sun (larger than moon ball) This is optional; you could
always just write "Sun" on one side of the board with a paint pen, but I think the
added visual is great!