Awesome stuff I had, but don't have anymore:
1) Gold nugget the size of a big man's thumb. No really, it was worth more than the gold value based purely on its size. I inherited it from my grandfather who owned a pawnshop in Gnome (he had some very cool stuff). My parents hocked it when they needed money, all us grandkids had one.
2) MTG cards, mostly Unlimited and later, ex wife sold them and kept the money before moving out.
3) A pair of Schrade knives (lockblade and honking straight knife). I put them in my dad's gunsafe when I left the country for 2 years so they'd be "safe". He forgot they were mine and hocked them along with about 20 other knives that were even more irreplaceable than my own.
4) C64 with 1541 disk drive. Really, I wish I still had this. I think my mom sold it to a collector while I was at university.
Awesome stuff I still have (somehow):
1) A bunch of old movie posters from working at a movie theater, the real kind (double sided) including awesome cult favorites like Robin Hood: Men in Tights and So I Married An Axe Murderer.
2) A rifle my grandfather willed to me, as a favor a fairly famous gunsmith he was friends with restored it for me.
3) Almost every Crossgen comic book before they folded.
4) A bayonet that I don't know much about (could be as old as WW2, but I just don't know). It was from my grandfather; they gave it to me as a birthday present probably out of guilt for the other stuff.
5) Tons of old video games, even some old C64 boxes and titles (Zork III Dungeon Master is probably the most well known).
6) A compact 40 ton hydraulic jack that I use on my Saturn SL, lol! It beats grating your knuckles on the pavement with those cheap scissor jacks.
7) I still have my Voodoo 3: 2000 video card that I used to play Diablo 2. I kind of like the epicness of the fallen Voodoo line.