in what is likely the single coolest idea ever presented for TBC (imo at least), someone has come up with a very detailed description of a jetpack that engineers could make and use. included are potential mats needed to make it, how it would work, and the (of course) hilarious deadly drawbacks of when it *doesnt* work.
http://forums.worldofwarcraft.com/thread.html?topicId=48955037&sid=1&pageNo=1
i dont know about the rest of you, but seeing a gnome streak into the ground at high speed followed by a large detonation on impact would make my day in so many ways. alternatively, seeing my friend use the jetpack with seemingly no effect, then later learning that his boots are at 0% durability would also be quite funny.