u/343__Guilty__Spark

Came home from work and found this in front of the garage door. We bought this house a couple of years ago, and we are always digging up junk when cleaning up the property. I thought this was something my wife pulled from the garden and left for me to pick up, but she says no. I have no idea how it got there, and we have no idea what this could be. I think it might be aluminum, and it's got a hard wire that loops back in and is crimped in itself. It hardly weighs anything. Any ideas?? Thanks in advance!