Took me a while to solve
Clever only took a couple of watches.
Had an idea yesterday when I first looked, but it was wrong. Spotted the clue but I didn't get it at the time. Then after watching now, spotted it
straight away. Still impressive though, as I think you'd never get it in a single live demo, only on continual replays.
And Penn and Teller looked impressed, so it was good.
I learned the same or very similar trick in primary school. Instead of elastic bands, we used a length of string that appeared to go through your neck.
Nah, I don't get it
Take a loop of string long enough to go round your neck. Hold it around the back of you neck then bring the looped ends round in front. Insert a finger in the loop one side, let go of the other end and pull the loop apart in one swift motion. It looks as if the string has passed through your neck
I think I see what you mean now, clever