In this video, Mickey explains his retention vanish.
Quote from coinvanish :
One guy I have to mention is Mickey Silver (great name for coin magic). Mickey was out at the bar performing his "Human Slot Machine" which I have to admit is one of the most hilarious things I have ever seen with coins. He literally spills coins from his eyes, nose, mouth, ears, and rapid succession with coins clanging loudly against the table. It really sounds like a slot machine. He also would pass coins from one ear to another and into his mouth – it looked fabulous. Many guys roared with laughter watching him perform this bit.