Yes, you might say I'm a decoration-aholic, and I spend a ton of time playing around with scenes. If you look at all the pics from my Schoolhouse Base mod, everything you see was placed by hand in game (even the shelves!) It's been an obsession of mine in FO3 and later in Oblivion. I even modded in museum like display rooms to display all the cool stuff you can collect and display in your trophy rooms.
Unfortunately, other than weapons, there seems to be s lot less quest items you can actually collect and display in FNV, so I'm searching for the cool stuff to put on display, but it's much harder than Oblivion and FO3.
Here's some more pics:
FO3 - Chekov's Place display room (Buck's Place coming soon to FNV): http://ypdesign.com/fo3/chekovs/museum.htm
Oblivion Glenvar Castle Trophy Room: http://ypdesign.com/tes/glenvar/display.htm
Fallout New Vegas Schoolhouse: http://www.newvegasnexus.com/downloads/file.php?id=37513