Pick up a piece of wire and apply some heat. As the wire heats up it twists and turns until if forms the shape of a selected card. Everything can be examined before and after.

Lights up in your hand on command, no wires, no connections.

The magic key that turns on its own. A large mortice key slowly turns over in your hand or in the hand of the spectator.

A glass full of milk is emptied in to another glass, yet the first glass is still full.