A Talespinner is a spinning coin that can be used like a twenty-sided die to determine a random number.
How does it work?
Step 1: Lay the coin on a flat surface, number side up. There is a raised point on the center of the coin's back which should allow it to spin on most surfaces.
Step 2: Set the coin spinning fast enough that the numbers on the edge become a blur.
Step 3: Stop the coin with your finger or a pencil (pointer). For the best result catch the edge of the coin. The number under the pointer is the result.