Need a place to store your Winter Solstice, Christmas or other holiday lights? Do you have cats? These cat litter bins make good storage containers for anything once they've been cleaned out. And they're stackable.
Another use for the trampoline frame. Take the round frame apart so that you have two semi circles and stand them upright. Install conduit in the pipes where the legs were and add a tarp. It's a quick and easy Quonset building. Trampolines are usually 14' diameter and that makes a 10x14x7 shed. That'll cover quite a few tractors. I've also used the original legs to lift it two feet on the four corners to give a nine foot peak.