LMAO! I have a "spare" Borg-warner T5 transmission that I've carted around with me for years.
At one point, I had it living under the kitchen table in my apartment. It was too oily to put in the "storage" room or anywhere else that made sense, because it was all carpeted. I didn't use the table much back then, so it seemed a good place.
The only part that really sucked was when I would be walking past it, and the input shaft was sticking out a little too far, and I'd catch it with my ankle or something.
In my previous apartment, it had lived in the front closet, with my shoes and coats.
I got some odd comments when people would hang their coats up.