- Unoiled and preferrably untanned and unsliced leather. - anykind of plastic filament, for production use ABS, do not polish with aceton. - Hot (preferable streaming) water. - Two pieces of straight wood, bigger than your design. - A tool press, A vice or a few clamps usually used for gluing things together. - A 3D printer (an Ultimaker works best:-) - Download the latest version of Cura. Minimal V13.4.2 - Any image to STL converter. For Mac, try this one (try converting a Google satellite picture of your environment or your favorite country for holidays) http://www.thingiverse.com/thing:24639 - For Windows I like this one the best, because of its abilty to alter a lot of the original settings: http://www.thingiverse.com/thing:66115/#made You have to hunt the internet for it, he closed his betaversion. If you can't find it, contact me. Please respect CCBySA 2.0 not only for my idea, but also for the converters you use, by adding the original links to the programs.