These are a couple of designs of pieces from the "Settlers of Catan" board game. I'm a real fan of this board game, but if you lose a couple of pieces you are unable to play it properly. So you print out a replacement!
More information on the game:
I made them in Google Sketchup and resurfaced and exported them to STL with the excellent CADSPAN plugin.
Here's a video of the 3D print:
I uploaded the files with Dutch names, but this is what the names mean:
Stadje.stl: a little city
Huisje.stl: a little house
Weggetje*.stl: a little road