I've been considering Superman in folklore, but mostly in verbal folklore: nicknames, jokes, etc. I've gotten a few pictures here and there, mostly of Obama as Superman. I don't know why it's taken me so long to consider Superman tattoos. It took Scrubs to open my eyes. Turk has a Superman tattoo on his shoulder.
Here are a few pictures. This one from a forum on Wizard, but a guy whose screen name is Team Rocket:
This one's cool. It's on the arm of a guy named Dan Spaulding, of Scenic City Builders, which explains the hammer:
This one's on a thread at bluetights.net, and there are a whole lot of picuters here. I choose this one because it comes up first in a search, and because the placement of the tattoo is another traditional choice. It comes with many names, the placement, which I will not get into here. It's posted by txsupergirl87:
There will no doubt be more tattoo posts in the future. I hear Shaq's got one, too.