Apparently every Nintendo Switch Pro controller has a small, hidden message printed above the right nipple stick. It reads 'thnx2 allgamefans!' So that's exciting. How is that new Zelda game, by the way? I heard it's amazing. I'm waiting for a friend to buy a Switch and then throw a masquerade party so I can steal it and they'll have to tell the police it was the guy in a penis mask, which I will have already disposed of because I'm a professional criminal like Cat Woman or Bonnie and Clyde except just Clyde because I don't work with a partner because I don't like splitting up my loot.
Keep going for a closer-up.
Thanks to CJ, who's convinced this is an anti-counterfeit measure like those little plastic strips in new bills.