One of my odd collections is old bird cages, even gerbil and mice cages, I take the plastic bottom dish off and use them to protect plants as I have such a problem with chipmunks in the fall in the greenhouse.
This is one of my favorites - it looks like a Victorian elevator - someone gave me a cheapie plastic water feature which I threw out as the plastic had rotted, but not before I salvaged the little cherub - he sits on the swing, and I call this 'Going Up?'!