Introducing...
Slyfox's Lost Mounts Vendor!
Well I went to WoWHead/Spells and filtered the effect "Mounted" and made mounts of all of the mount spells that aren't actually mounts ingame. They are actually just trinkets that mount you when you use them. (WAY too tired to make real mounts, that takes a little while.) There are things like the Dawnsaber and the Chromatic Dragon that I thought I'd make into real items and put them in a vendor.
The IDs are 90025 - 90038, that's 13 mounts in all. Most of them are 40%, and there's no flying mounts, Blizzard doesn't toy around with mounts as much as I wish they did. =/
Here they are: RapidShare: 1-Click Webhosting
Enjoy.