The Silk by Gonzalo Albinana and Crazy Jokers

In any moment, or any part of the act, you can take any regular silk of your preference, and make it pass through the palm of your hands, or the hands of someone else. Just like that. You can show both sides of the hand, and make it as many times, and as quick or slow as you want. Then, you pull off the silk, show every part of it, and your skin, because everything can be examined. Later, or before, use the silk for other effects.

You can do it close up, in parlor or stage situations. It's a hit in kids and comedy magic, but you can make any kind of presentation with it, even in more "dark" presentations, or hypnosis.