Game: What the heck is this?
Here's a new game! What the heck is this!?
This would found in the yard of the tower. It looks like it fell there.
Answers should be convincing, but not necessarily correct. Although being correct will probably help you be convincing.
I, and maybe some others at Instructables, will judge. If this turns out to be fun, maybe we'll award patches or t-shirts for the most convincing answers.
So, what is it?