The Acrobatic Coin –

... balances on the tips of the fingers steadily.  Then, it sways slowly back until it lies flat on the hand. Your audience can lift it off your hand, but they’ll never find –
1) Hold the pin behind a silver coin with finger and thumb. You can change it from hand to hand safely.
2) Place the coin on the finger-tips and hold it in place with the thumb until the pin is gripped between the fingers.
3) When the pin is strongly gripped, raise the thumb and the coin stands firmly, leaning on the pin.
4) Now slowly release the fingers’ pressure on the pin, allowing the coin to settle back into the fingers. When it is laid flat, open the fingers slightly and let the pin fall to the ground.