Thanks for the pathetically placed, random diss, Pentegarn. Keep it up, buddy! Here's a hint though; stop laughing at your own jokes.
Back to tattoos:
I've never seriously considered getting one up until recently, after seeing some of the amazing work that people have had done. I'd possibly (no definites here) like to get a piece on my back that resembled some art by Diego Rivera. Example
and for instance.
As for life-like tattoos, I personally like anything that is well done or means something. Designing one yourself is pretty damn cool.