Certainly is interesting. If you've got Poser5 you might also be interested in the recent tattoo freebie by Medusa Graphics, which blends a body map and a tattoo map in the material room. The tattoos can be resized and positioned by adjusting the UV scale and coordinates on the tattoo image map node. A fading effect is also made possible by adjusting the texture strength of the tattoo, but this effect doesn't seem to lend itself to automatic creation of animations when the texture strength is adjusted in key frames. I've just had a very quick play with "a hairy Mike" and a bit of realism does seem possible by blending the body and tatto maps in this way.