Abstract: A preferred embodiment of the foldable part holder is comprised of a front flap, a bottom flap, a back flap, a top flap, a prong flap, a plurality of folds, a plurality of slots, and a plurality of apertures all of which are formed from a flat sheet of polymeric material. The front flap, the bottom flap, the back flap, the top flap, the prong flap, the plurality of folds, the plurality of slots, and the plurality of apertures are all arranged on the flat sheet such that when the flat sheet is folded along the plurality of folds, the embodiment forms a three-dimensional part holder. The plurality of folds are formed by the polymeric sheet such that when folded the flaps engage each other in the appropriate manner. All of the elements formed onto the flat sheet of polymeric material through any fabrication process common for polymeric materials.