The method detailed is very clever. My issues are the wallet is made of cheap imitation leather. It
was not made for the effect but appears to have been rather sloppily modified from an existing
wallet. Also, in practice the second gimmick wasn't completely reliable and my wallet ended up on
the ground a few times. I'll try to modify the gimmick before giving up on it, as the idea behind
it seems very clever. For the price, it should have come with a higher quality wallet and a better
thought out [more secure] gimmick.