The Glass-Maker
Another trick to play with pins is the glass-making pin. Cut an ordinary rubber band in two, and stick a bent pin through the middle of this. Now hold an end of the elastic in each hand and whirl it rapidly around, stretching it a little. The revolving pin will at once assume the appearance of a tiny glass vase, or tumbler, and the shape can be varied at will. It is best to have a strong ray of light on the pin and the rest of the room darkened.
The Glass-Maker