The Silk by Gonzalo Albiñana

At any moment or at any part of the act, you can take any regular silk of your choice, and make it pass through the palm of your hand, or someone else’s hand. Just like that. You can show both sides of the hand, and perform it as many times and as quickly or slowly as you want. Then, you pull off the silk, show every part of it and your skin too, because everything can be examined. The silk can be used before and after for other effects.