The ridges on Yip Stick are cut with a 3/8" router blade.
For best results use a plastic item that is a larger diameter than those grooves.
A sharpie will give you the best results .. whereas a narrow pencil will tend to fall
into the grooves and create too much friction.
And you dont need to rub with a lot of force. The rubbing simply excites the propellor
in an up-and-down motion.
The FUN begins when you ask a friend to say a word or phrase and then you magically reverse the spin !!
Visit the instructions page for more tips to get the best action from your Yip Stick.
