In before the Zombie close:
I built a Jacob’s Ladder this year:
I have a plush Edgar Allen Poe doll (posed as if receiving a kick to the head from my Bruce Lee action figure), a humongous 1:18th scale F4U Cosair suspended from the ceiling, and a die cast Batmobile from the campy 60s TV show among other bits of weirdness hanging around my studio.
The original case of vintage Starship Enterprise blueprints, a super geek out in 1975.
Life-size standup theater cardboard of Boba Fett. He keeps me safe at night.
I have not one, but two TNG blueprint sets. I bought one at Barnes and Noble, saw the second one in the shelf and bought it too. The guy behind me looked at me funny. I said “One to keep and one to look at.”
He bought two, too.
Didja know the NCC-1701-D has Cetacean tanks?
Lord of the Rings Risk.
A scale model of a DeLorean (big Back to the Future buff).
My whole house is crammed with stuff that prolly makes the lot of you look like normals. It’s a veritable nerdfest in here. Here’s one of my prize possessions tho.
That’s a genuine IBM circuit board encased in plastic (not sure if it’s lucite or plexi) from sometime in the 60s. I’ve had it since I was a kid.
It’s prolly at least partially responsible for my dismantling and reassembling of telephones that I started when I was 9 years old or so. FTR, I always got them back together in good working order, too.
I am not very nerdy by this groups standards but I am the Uber nerd in my family for having a Star Trek 3D chess set.
I sent an email to a guy who collects IBM stuff, and found out a bit more about this childhood keepsake of mine.
So I actually have a piece of antique computer in a solid plastic display. Go ahead, tell me I’m not 1337! I dare you! I double-dog dare you! 
A Roche 2-part biochemical pathways poster series.
From various provinces of ‘Nerddom’
- Graphics Programming for the IBM PC
- Software Engineering 8th Edition
- Nobilis (the pen and paper RPG)
- The Tower Towers EE and the Return of the Kings EE
- Lord of the Rings Online: Mines of Moria and Shadows of Angmar collectors’ edition
- Warcraft III Cinematic DVD
- War of the Ring board game (opened but never played)
Mmm, amongst the standard nerd paraphenalia of dice, rulebooks, plasma balls etc, I have:
a plush dust mite
an arduino clone that’ll soon be connected to a mechanical tentacle
A pigfaced bascinet
Several Elizabethan doublets & a rapier
A Lego AT-ST with Professor Snape at the controls.
LOTR-version Risk! game.
Does she have kung fu grip?
Jealous!
I’ve got a beautiful, hand-carved Harry Potter wand in a silk-lined display box that came from somewhere in the UK. Also, complete sets of US hardbound, paperback, UK hardbound, paperback, and both Jim Dale and Stephen Fry audiobook versions.
Also: librarian action figure with push-button shushing action!
My falconry license is pretty nerdy.
My wife has the -complete- collection of Hallmark Star Trek ornaments.
Probably my radio shack “illuma-storm” plasma globe
Miniature Sandworm (toy from the movie release, never saw the crysknife :mad:), Babylon 5 Ranger badge (thanks Dragon), Venus on the Half-Shell, period garb & weapons (a Ren/SCAdian thing), and a hand towel from Harrods (sent my Aunt to England to collect it for me, though she thought it was a vacation) 'cause I’m rarely not the hoopyest frood in the room (except here, where I comfortably have “just zis guy, you know?” status :)).
CMC fnord!
If one can say “me too” to twenty or thirty+ items listed in this thread do they qualify as an uber-ubernerd?
All the AD&D 1st ed. rule books, Car Wars, Gamma World, Traveller, etc, Monkey Chant MP3, Trinitite, etc, etc, etc. 
Buffy the Vampire Slayer Pilot script signed by Sarah Michelle Gellar, Nicholas Brendan, Anthony Stewart Head and Alyson Hannigan.
Even better, it is prominently displayed on an easel on my carefully interior designed dining room.
(Though I had to obtain a second, unsigned copy of the script to read it since I don’t want to wreck it.)
I have a nice collection of diseases and viruses from giantmicrobes.com, too.
A T-shirt with Einstein’s face done in stars and galaxies that glows in the dark.
A homemade voodoo doll as my pincushion.
Slide rules of every variety from days of yore.
The original IBM PC, monochrome monitor, and the MS-DOS 1.0 manual.
Shelves and shelves of math and stat textbooks.
Oh yes, I’m looking at an action figure of Albert Einstein on my desk right now.