Settlers of Catan board generator
I wrote a java program that generates postscript Settlers of Catan game boards for printout. Settlers of Catan is a very fun 3-4 player strategy game that uses a different randomly arranged board for each match. I highly recommend you purchase a real copy of the game, but you can use these printouts (and colored markers) as a travel version of the game.
Source code is available here. The printouts look like this: