If you can stand it good for you! I used to do this to battle my insomnia but my wrists and joints could only take sooo much.
I did manage a shirt and coif set of over 15k rings and countless pouches and balls/hacky sacks for friends, all of this before theringlord.com was around or at least popular. I would spin my own rings on a mandrill and spend hours clipping and spreading, one gallon bucket of open rings, another of closed then I would set off for hours at night watching bad movies, it becomes like knitting after a few days you don't even look at the work!
Edit: Also I got lucky enough that a friend of my father machined me a ring shear, was very nice to have clean cut rings on the final product, I think I still have it somewhere if your still interested after a few weeks of chainmaille