LOL... I once purchased a black powder pistol (new)... which CAN be shipped w/o an FFL involvement. The fit/finish of this thing was HORRID. The maker did right by me (no gripe there). Being aware of the shipping issues (dealing with the store employees)... when they asked me what was in the box: "Machined metal parts for a hand tool that makes holes"... they smiled and nodded and accepted my shipment.
I brought a box to Alaska Airlines, Air Cargo once... wanting to ship it to Seattle from Anchorage. When they asked me what was in it: "Dead fish parts". The pause, and look of horror on her face was epic. I let the silence continue for a little more, and clarified: "Frozen Salmon". She looked like she'd released a long over-due fart as she smiled and continued with processing my paperwork.