Until I found this out by the curb a few weeks ago:
At first I thought it was an old lobster trap. Then when I actually got the car turned around and pulled over (in, like, 15 seconds), I realized it was an old rabbit hutch or chicken coop. It's made of weathered teak with wire sides. After a thorough hosing down (it wasn't really bad- hadn't been used in years, I'm sure,) it fits perfectly, and I love its rustic look!