A lot of it is packed up at the moment, save for the Chief's helmet, but here's what it used to look like before I moved:
The unique items of note would be towards the lower right: a 3d-printed dead zebra from ODST's Uplift Reserve that Vic DeLeon gave me at HaloFest and the ODST cardboard standup you can just barely see which was salvaged from Wal-Mart. Also the thin little thing after Halsey's Journal in the center of the image is my print copy of A Fistful of Arrows.
I'll take some better pictures of that Zebra some day, as well as the original art I bought from Shi Kai Wang at ECCC 2011, which is really cool... Actually I need to just frame that...