On the International Space Station it looks like astronaut Reid Wiseman is making good on his wager with German astronaut Alexander Gerst.
Gerst explained the wager before the game:
If the U.S. wins, these guys are going to draw a little U.S. flag on my head, but I think if Germany wins these guys should have to shave their heads. Either way I'm looking forward to the game. It's going to be fun.
ETA: Here's how you cut your hair in space.