3D printed clips and doors designed to turn scrap cardboard into small buildings for use with wargaming, reusable and resizeable. I designed these to be used with cardboard from amazon shipping boxes but with a little resizing they could be made to work with any thickness of cardboard. For a fancier building flood fill a stone or wood texture with gimp and print if out and glue to the cardboard. When you are done disassemble them and store the parts flat in a box. The doors are based on Zombiecide door by Isolt http://www.thingiverse.com/thing:1126259