This exploit allows you to fish in the Twilight Highlands without all the hassle of getting around No Mands Land.
Go to the river in Wetland at the side of Arathi Highlands and go (on the side of Arathi) past the coast of Wetlands. Now go to the north of TH and go fish. You won't see the message that you're in the Twilight Highlands but your fishing bobber will be. Thanks to onikage55 from mmochampion for this.
-Aldun
Edit picture: (note: even though I've tested it myself before posting I didnt really think a screenie would be needed so I don't know the very exact spot, but I know I tried around 3 that all worked. They were all in this area so you'll most likely be fine anywhere here).
edit 2: img tags don't seem to work so heres a link: http://yfrog.com/12naamloosewp
Thanks to clov for this vid: