Unicycle
Tap shoes
Piercing of any kind
Leg Warmers
(Not referring to the toys, rather the real things)
Helicopter
Jet Plane
Horse
Camel
Goat
Cows
Humans
Castle w/ a moat
Lions
Tigers (not so much nowadays)
Bears
Golf membership
Movie Theater
Video Arcade
Oh ya, that's right - video game consoles. I had purchased one once, but that was to appease a stoner tenant I had. He promised to stay and pay "indefinitely" providing I purchased a PlayStation or something. It worked. Guy was the best tenant ever - just smoked himself retarded and played video games 24/7. Clean, tidy, and quiet. When I had to have him leave cuz I sold the place, I gave him the console - he was stoked.
So I don't really consider that "my owning" such a device.