I've been looking through the beta database on thottbot, and came across some pretty cool items.
Remote Mail Terminal
Ever needed to check mail without going to a town? Here's the solution! Depending on how much the mats will cost, however, might only be useful in certain situations. It can always be used just for the cool factor though.
Dimensional Ripper - Area 52
Ultrasafe Transporter - Toshley's Station
Engineers will get a free teleport into Outland... I assume it's on a 4 hour cooldown like our current teleports.
Goblin Rocket Launcher
"Fire a powerful rocket at the enemy that does 960 to 1440 damage and stuns them for 3 sec. This thing has quite a kick though..." And look at the picture! Too bad I'm not Goblin engineering though.
Gnomish Poultryizer
A polymorph! I know this will backfire probably 1/3 of the time like the MC helmet... but just having it go off once against a mage will make me very happy. Can't wait to use this in PvP.
Ultra-Spectropic Detection Goggles
I'm not really sure what this does exactly. I assume it's something to do with Outland, and it sounds kinda cool.
This is exactly why I picked up engineering in the first place. I love quirky, cool items. Can't wait until TBC comes out!