This is an inexpensive way to add a great illusion to to add to a stage show. It can even be used
in a living room setting if the room is not too small. The prop looks cool and it is a neat effect
to see the spinning vortex. It really sucks you into the routine. The spectators stare into the
spinning disk. After 60 seconds or so, you tell the spectators to looks at you nose. Your head
actually shrinks! No joke, it does look that good. Reverse the direction of teh spin and your head
grows to mammouth proportions. It gets laughs and gasps.
You'll need a power drill or
electric screwdriver to spin at a constant speed. You will need to come up with a good routine and
get the audience to get their eyes trained on the disk. Some people will not see the effect the
first time so do it twice. This works well in a large auditorium. The prop is well made out of
thick plastic and should last for years if taken care of. Shrinking and Growing Head Illusion was
created by the brilliant Bruce Kelvar.