The real boat crews spent a lot of time on these things...
...I wanted my PBR to have a used, lived in look about it. I accomplished that by filling it with lots of stuff that a crew might have. Stuff like oil drums, gas cans, c ration cases, helmets, weapons, ammo pouches, canteens, cigarette packages and cartons, magazines, letters, maps, c rations, tin cans, coke cans, wine bottles and even chewing gum wrappers. I think I even have Savage's seabag on there somewhere.
The more stuff the better, but it has to be functional too. This is my stage for photography and it has to be flexible. Certain items are removable so that the set can be changed as required.