I think it would be interesting to use the process for the extremely high tolerance-cut-metal blocks, where the items in the block are such tight tolerances tha

I think it would be interesting to use the process for the extremely high tolerance-cut-metal blocks, where the items in the block are such tight tolerances that when inserted, you cant see them. Then - cut all the items you want into the hunk/hunks of metal such that you can pop them out in-flight and assemble your mechanisms of chaos... You can just have non-descript blocks in a case and say they are for scientific experiments but they look like un-machined pieces in the case. heck - even have a clear lid on the case with labels of different 'alloy make-ups' to make it look more like a metallurgical kit...