My dad's old flight helmet. I'm not sure how he got to keep it, maybe he got to keep his flight training helmet or if they got new ones so he got to keep his old one. Either way, I found it in a box, and it's looking awesome on my shelf with my last name on it.
However, that's cool, not weird. It's hard to describe the weirdest thing, so I'll give a picture (note: I didn't take this picture, my room is cooler than this guys. Same weird thing though)
WARNING: IF OU ARE AFRAID OF CLOWNS DON'T LOOK.