It Wasn't Me, It Was the One Armed Man

If anyone has some good ideas of things to do with one arm; I would be happy to take suggestions. I am basically looking at having my left arm cast up with pins sticking out of it. I am currently planning on lots of movie watching and some Internet perusing but that pretty much sums it up. Knitting is definitely out of the question. Even typing will wind up being a problem so that isn't looking like viable option. Suggestions welcome.