Let's see how to make an arch with the rim of a bike wheel. In principle it will not be a very powerful bow, but it is necessary to be able to use it at a distance of about 20 meters, and be able to have fun with a target.
As a child I I have made dozens of bows, with all kinds of branches, wood and plastics. Using ropes, bike tubes, etc but it had never occurred to me to make a bow this way. And I have an old wheel with which I already know what it does.