I stumbled, literally, into this the other morning and came up with these for the Post Title:
* She Thinks My Tractor's Sexy
* Old McDonald Had a Farm but he had to go on a hunting trip with his buddies this weekend and won't be able to tend to it so "honey would you mind taking care of that too while I'm gone?"
So you see? Buying a tractor for a boy will not cause him to be gender-biased.