Tricked you.  I’m not even going to touch the subject of guns on board.  What I will talk about is ammo cans.   They are relatively small, water proof, stackable, and have handles.   Basically, they’re the perfect small item storage solution for your boat/rv/tinyhouse.  We have about a half a dozen of them on Twig.   Our primary usage is to store small boat parts and tools, but it doesn’t have to stop there.  Most of our six are stacked in a cockpit locker with labels on the front, making for easy identification.

Here are some of the cans we have:

1. Drill bits (5-6 small dewalt storage cases fit perfectly inside)
2. Electrical parts
3. Small boat parts

Other ideas:

1. Lego sets
2. screws/bolts
3. Device electrical cords
4. First aid
5. Medicine
6. Toiletries
7. Ditch bin
8. ….

Ultimately, your creativity is the only limiting factor for storing small objects.

I guess if you DO have a gun on board, you could use them for ammo too.
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