Check out our new upgrade for the paper models in the "Monsterpocalypse" Starter Sets.  These models are laser cut from 2mm HDF, and have a rigid core assembly with overlay veneers to give the model 3D details.  We have designed these so that you can upgrade the look of your play mat at a good price point of $2.50/building in the 6 model set.  So if you're playing "Monsterpocalypse"  be sure to check them out.