I turned my Tops casino presidential suite boardroom into my collecting room. i removed the chairs with console commands and turned the table into my vault collection. I have all vault outfits lined up on it. on the shelf on the left side of the room, I have empty Nuka-Cola and Sunset Sarsaparilla bottles and a nuke cola truck there. on the other shelves, i keep my Veteran Ranger stuff. I have a ranger helmet, ranger sequoia, ranger combat armor and some NCR money.

I have the Underwater Home mod. It has a huge display wall on the Armory. Most of my characters try to fill the walls up, unless they are on a strict role.

One thing I do collect that has no real in game value is Pre-War money. The Underground Hideout has a shelf that will stack your money for you and then I pile the excess on top of the safe in that room. Note the Underground Hideout has a display wall too.