Rub-away Coin Vanish
Another trick you can perform any time someone asks you to perform some magic. All you need is a coin, and if you don’t have one, you can borrow one from someone. In fact, it might look even more amazing if you do borrow the coin. The rest is down to misdirection and acting.
You can also view this trick on YouTube at https://youtu.be/RjQkHX1nebg
You can see all the previous magic lessons here.