carcassonne game river add-on Interlocking 3D tiles

addon for carcassonne game . based on http://www.thingiverse.com/thing:34295 , new interlock pad for the river side.

could be printed in muntlicolor as I add the river 0.3 mm deeper than the land.

but may be tricky as need 3 color (green grey and blue)

I'm printing it in white ABS 0.1mm heigh 0.5mm wide.a bit long but nice results. I intend to paint them all
(edit 1) the results are better with 0.2 layer, the bridges over the small hole in the wall are better and there is no advantage to print in 0.1mm (and it is faster )

I added some extra tiles I found on the net to improve the game