Ring and Ribbon
Select two pieces of ribbon, alike in length, breadth, and color; double each separately, so that the ends meet; then tie them together neatly, with a bit of silk of their own color, by the middle, or crease made in doubling them. This must all be done in advance. When you are going to exhibit this trick, pass some rings on the doubled ribbons, and give the two ends of one ribbon to one person to hold, and the two ends of the other to another. Do not let them pull hard, or the silk will break, and your trick be discovered by the rings falling on the ground, on account of the separation of the ribbons. Request the two persons to approach each other, and take one end from each of them, and without their perceiving it, return to each of them the end which the other had previously held. By now giving the rings, which appeared strung on the ribbon, a slight pull, you may break the silk, and they will fall into your hand.