I made one of these last year so this time around I took a lot of in-process pics and made the map bigger. This one is 2'x3' cause Staples couldn't laminate any bigger. I gave it to the kid with some dry erase markers so he can make his own X.
Click on pics for bigger:
I did all the basics, islands, towns, castles, etc. and then had to add some geeky stuff to it.
Cthulu, Waldo, Mola Ram, a Tardis, the Eye, the Canyon of the Crescent Moon, a shipwrecked guy drying his tighty whiteys on a tree.
An empiral probe, yeti, crashed Enterprise
More pics are on my blog and the tutorial on Instructables has more information on the process. It's really easy.