"This is a great, visual bit of magic that can just slip into your pocket. You show the stick to have six different coloured crystals on either side. Your spectator chooses a colour and with a tiny flick of your wrist all six crystals change to that colour... ON BOTH SIDES OF THE STICK!!! Don't overlook this one - it's a gem."
Crystal Hot Rod Trick - Red Or Blue
Easy to learn
Fits in your pocket
Step by step learning online
This crystal edition of the classic HotRod makes the effect even more deceptive. A spectator selects a color and suddenly, all of the gems magically transform into their chosen color.