Well, alot of Private Servers have plain shopping malls with all the same looking vendors. I like to change the Display ID of my vendors to make it less plain. Here are a few ID's I know of that are cool.
Use this to change their Display ID's.
666 - Starting wolf in Northshire ValleyCode:.Mod DisplayID ID# 1
11121 - Ragnaros
13031 - Lucifron
18718 Medivh
21137 - Illidan
3533- Undead (Male)
3529- undead (Female)
4358 - Troll (Female)
11193 - Troll (Male)
6768 - Orc (Female)
6785 - Orc (Male)
5486 - Tauren (Male)
3000 - Tauren (Female)
2222 - Night Elf (Female)
2245 - Night Elf (Male)
7000 - Gnome (Female)
7004 - Gnome (Male)
7001 - Dwarf (Male)
5737 - Dwarf (Female)
17155 - Draenei (Male)
19171 - Draenei (Female)
19161 - Goblin (Female)
19000 - Goblin (Male)
19169 - Blood Elf (Female)
21881 - Blood Elf (Male)
5735 - Human (Female)
5736 - Human (Male)
20628 - Maiev
If you want to find a monsters Display ID, simply type .NPC Info and scroll up to DisplayID: and add that number when modify it's DisplayID with the command above!
Enjoy,
KLEN
Thanks to Zumzar and Mitchy for some of the Morph Codes!