So, I was looking through this thread (mostly page 2), and I decided I might try something like it.
It's not as good as I hoped it would be, and it has no background, but here is a kerbal in some regular (i.e non astronaut) clothes:
I tried. I can't seem to get the legs right: They look like half-inflated balloons. And I think I need to practice a little on the hands.