Thingiverse link: http://www.thingiverse.com/thing:208591
Settings: MakerWare .3mm/low in two batches (to get the two colors).
Technical notes: We used the default sturdy tile setting in the Customizer again, as below. If you have sensitive hands or want to easily take apart and put together the model over and over again, then I recommend either a lower Thickness or a higher Clearance. Test things out with a couple of tiles and see what you like best.
Sides = 3 and 5
Snaps = 3
Side Length = 25
Thickness = 3.5
Border = 3.5
Clearance = .17
Lengthen = .3