A: Hey, Heather. Want to see something crazy?
A: Check this out. Make sure that's normal.
Heather: Looks normal.
A: Pretty good?
A: All right. Watch. Make sure my thumb is normal. There's no trap door?
A: Okay. Watch. I'm going to wrap this around my thumb twice. All right? Grab my thumb on the top so it can't come out the rubber band. Watch this. One. Two. Three. It comes right through. Just like that.
Here's the explanation to the rubber band penetration through the thumb. For this illusion you're going to need a rubber band, preferably a size 19, and your thumb. You loop the rubber band around your thumb. I use my right hand. Basically what you're going to do is, you're going to twist the rubber band away from you with your left hand, creating a triangle. You're going to put your first finger into the triangle, and you're going to turn it towards you, creating a circle, a ring, around your first finger.
Then you're going to put this loop that your left hand's in over your thumb one more time, as you pull the little loop that your first finger's made taut. Basically what you're going to do is, you're going to have them hold your thumb as this locks into place. When your first finger comes out from the loop, you're going to pull your left hand taut, and have them grab your thumb. All you have to do is just shake, and it comes right through. That's the explanation for the rubber band penetration through the thumb.