Jigsaw.

Have actually found I can use my camera without too much problem. 

Yesterday I got a bit bored with not being able to do anything, so I found this little jigsaw.  I managed to do most of it with my left hand as I'm supposed to keep my right hand elevated.

I found a 1000 piece one in the cupboard, which I'd love to do.  However, that would have to be done on a table, and I can just see the 2 cats flying through it and bits of jigsaw being lost in the melee.