Two wooden boomerangs are displayed, one bright yellow, the other, fire-engine red. The boomerangs are shown to be exactly the same size by placing one directly on top of the other. The ends line up and it is clear that they are exactly the same size. The demonstration continues as the performer alternately shrinks the boomerangs, first showing the yellow to be considerably shorter than the red. Then the red one is shrunk to be shorter than the yellow. This can be repeated ad infinitum, relying on the age-old, clever optical illusion. However, the optical illusion becomes reality at the conclusion of this routine! The red boomerang is now placed on top of the yellow showing it really is over an inch shorter! Both boomerangs may be examined.