Make a bow out of a bike tire
When it comes to surviving in the wild, it is vital to have a way to obtain food. Hunting is one of the best ways to get sustenance, but it requires a weapon. Fortunately, it’s possible to fashion a bow out of a bike wheel.
The metal frames, without the spokes, can be used to build a rigid sight and grip. The rubber can serve as the flexible element of the bow. All that’s left to do is simply attach some eyelets and pass the string through.