Gobos

Gobos shape light beams.  The black area of the gobo blocks the light and the light beams takes on the shape of the white area.  Something interesting about gobos is they must be inserted into the lantern upside down and backwards in order to be projected correctly.

swans gobo b. famous on stage magic application

Plus

profile stage light b. famous on stage magic application

Equals

Magic!

Pose 4 with ice gobo b. famous on stage magic application