My Mandalorian Armor is split up into a couple of places: The Flight suit is hung up on a High end Hanger on a special hook because it is taller than the highest bar to hang clothes that I have, the Armor Plates are placed in my dresser along with the Flack Vest and a lot of Silica gel packets because my armor is 2mm thick steel that had a thin layer of oxidation on it after my first con so I had to clean it quite well, now after every event I go to I always wash the soft parts of the costume and clean then dry the plates themselves even though they have been treat to prevent rust (I take no chances), then the helmet has a custom stand that I made that mounts to the wall but can be placed on a table as well.
My Halo 3 Hayabusa armor is similar but the under armor is also stored in my closet with special hangers but stays on the high bar, the armor is Fiberglass Pepakura but it has a Padded "Roadie" Equipment Hard case that has been painted with a UNSC theme and weathered to look like it has been well used to put the armor and props, since the Hayabusa Helmet has lights in it the custom stand is (also designed like the other one) built with a 12V DC charger that has been modified and changed the Male plug connector to a Male Mono speaker cable , so the helmet's lights can be turned on when I have guests over or when I just want to look at it.