Three letter word grab:
1. A "dam" of any sort.
2. How about an "ass" (We are the Donkeys, after all).
I had the PERFECT example, but didn't check the picture well enough before bailing out feeling a bit creepy...
Just behind the right grip was the definite winner for the day, hands down.
But, since that really didn't turn out like I'd planned, here's Plan B:
3. A "hog", mammal or machine.
4. "Art" of any sort
5. A "zoo", big or small