I have 48 new 35mm film canisters, with lids, that can be used with some light duty sprayers that I see some members use. If anyone wants them, shipping charges only, let me know - OW they go in the dumpster.
I used them during my build, they make great rivet containers. Drill a hole in the lid and you can shake a few out at time. Knock the container over and you don't have to worry about scattering a few hundred rivets over the floor.