Thinkgeek has a “Wonderland Transit Map” t-shirt, although they do add the caveat that static maps would probably be useless in the amorphous Wonderland. It got me searching for t-shirts for fictional places that would be equally as useless for navigation.
I found a t-shirt for Neil Gaiman‘s “Neverwhere” which is a story set in a London Underground that is always changing. Of course, Terry Pratchett‘s Discworld is another constantly changing world, where maps don’t help. A t-shirt map of Garrison Keillor‘s Lake Wobegon, a town so small it doesn’t need a map. I couldn’t find a t-shirt but Catan from the Settler’s of Catan would be another place that a static map would be useless.