Didn't Heavy Water do a free torso as a blank canvas for their tattoo's?
It may not be exactly what your looking for but its worth checking out, you might like it, and it is free.
I don't know of an in-game reward that is a torso unless it came after the cap level raised. There are some to buy and as was already mentioned in a previous post, there are a bunch of free items (including torsos), from just entering the space.
...and yes KT--that Heavy Water torso is a free one as well.