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An offbeat effect, the head of a stick man that's drawn on a signed business card moves across the paper to another location. Effects where a drawing changes are always crowd pleasers. This one requires a flame from a cigarette lighter.
The principle, which was entirely new to me, is ingenious and allows you to create all kinds of variations. The underlying principle essentially allows you to vanish a drawing or piece of drawing at will. You can even draw in several colors. I already have a few ideas that I will explore. You will need an item that is readily available in any stationary shop or online.