Knots off Scarf
The magician shows a scarf and ties a knot in it. He slides the knot down the scarf, then explains that it’s just a trick. Real magic would be if he could slide the knot right off the scarf and put it in his pocket. So he does. Twice!
You can also view this trick on YouTube at https://youtu.be/71iCE9TpRm0
You can see all the previous magic lessons here.