Slippery Expanded Shell “Half Dollar”

Here is a gimmick coin that will allow you to bring your coin magic to the next level. You will be able to make coins appear and vanish at your fingertips, make a coin penetrate a card, make coins travel across the close-up mat (Matrix), jump from hand to hand…
It can be used for very simple effects or for with more expert coin manipulations, and it’s uses will be limited only by your imagination.

Various ideas are explained in a video tutorial.

Note: for the effects shown, regular half dollars will also be required (not provided).
This is an economy version for practice.