Advancaed Ordnance Teaching Materials (AOTM) is a state department and academic collaboration using 3D printing to make explosive simulation kits to train "deminers" or people in the field doing the removal work. AOTM claims that it would not be able to develop these training materials without 3D printing. This is an important application of 3D printing in the much needed arena of landmine and other explosive removal.

Read and see more at http://3dprint.com/69133/3d-printed-landmines-grenades/