Möbius strip

A Möbius Strip is a 3-dimensional shape that has only one side and one edge. It looks like a loop of paper that has been twisted and joined together. It has a cool property that if you draw something on it, the picture will keep going forever. You can make a Möbius Strip by taking a piece of paper, giving it a half twist, and then joining the two ends together. Now you have a Möbius Strip!