OK, this may be the most ridiculous thing you'll see all day, but I couldn't resist sharing. He'll hate me for this when he's a teenager, I'm sure. He immediately pulled this gem out of the latest bag of hand-me-downs from my sister-in-law and hasn't gotten sick of it yet.
BTW, in case you're interested, the little cow face on the tummy of the costume - it "moo"s when you press it. For real, people.