Display List:

###Dead Money Shelf - Requires the item itself to be displayed (can be retrieved):
* 1 Clean Cosmic Knife
* 15 Gold Bars (Shelf)
* 22 Gold Bars (Table)
* 35 Sierra Madre Chips

Requires only the DLC to be completed:
* Holo Emitter
* Inert Explosive Collar
* Posters
* Photo
* Radio

###Honest Hearts Shelf - Requires the item itself to be displayed (can be retrieved):
* A Light Shining in Darkness
* Chalk's Headress
* Daniel's Hat
* Desert Ranger Combat Helmet
* Salt-Upon-Wounds' Helmet
* Salt-Upon-Wounds' Power Fist
* Scripture
* Tomahawk
* War Club

Requires only the DLC to be completed:
* Compass
* Lil' Scout Lunch Box
* Map
* Zion National Park Posters

###Old World Blues Shelf - Requires the item itself to be displayed (can be retrieved):
* Atomic-Valence Tri-Radii-Oscillator
* Corrosive Glove
* Dark Light Hazmat Helmet
* Dr. Klein's Glove
* Dr. Mobius' Glove
* Protonic Inversal Throwing Axe
* Proton Throwing Axe
* Saturnite Power Fist
* Sonic Emitter
* Sterilizer Glove

Requires only the "X-8 High School Horror!" quest to be completed:
* Blueprints

Rqeuires the DLC to be completed:
* Think Tank Photo

###Lonesome Road Shelf - Requires the item itself to be displayed (can be retrieved):
* 2 Flash Bang Grenades
* Bowie Knife
* Flag Pole
* Laser Detonator
* Marked Beast Face Helmet
* Industrial Hand
* Tunneler Hide
* Ulysses' Mask

Requires only the DLC to be completed:
* Flag
* Statue

###Adjacent Display - (can be retrieved):
* Compliance Regulator
* Christine's CoS Sniper Rifle
* Elijah's Advanced LAER
* Elijah's Gauss Rifle
* Holo Rifle
* Rawr's Claw
* Riot Gear Helmet
* Advanced Riot Gear Helmet
* Elite Riot Gear Helmet
* She's Embrace
* Survivalist Rifle