Preoccupied with coming up with t-shirt ideas after losing a testicle to cancer

That's nuts

A baseball batter with the scoreboard indicated a 1-0 count.

I was thinking like a pear with a chunk bitten out, because you lost a chunk of your pair. Maybe even in the style of the Apple logo, if you wanna be cheeky. But then I realized it's kind of a convoluted pun to have to explain to people, so I'm voting for the squirrel.