Credit / source : http://www.lazy-sniper.com Link: http://www.lazy-sniper.com/?p=3288 Author: Jaedia.
Thanks to @Monkeh for bringing this great post to my attention!
If you look for more WoW Fashion resources, head over to http://www.lazy-sniper.com/?p=3288 , cause there is great article with several really good suggestions how to set up your Bank Alt.

1. Tuxedo Shirt/White Tuxedo Shirt + Tuxedo Pants/Black Tuxedo Pants + Tuxedo Jacket + Diamond-tipped Cane + Battered Jungle Hat + Recruit’s Boots.
2. Lovely Black Dress + Stylish Black Shirt + Neophyte’s Pants.
Now, I’ve had a browse through Wowhead and the following outfits, in my opinion, suit the smart/casual auction house banker. This can be easily mix and matched if you wish to. Being for a low level bank alt, they are nothing overly extravagant but they will do.
3. This set requires level 15: Aboriginal Vest + White Linen Shirt + Acolyte’s Pants +Journeyman’s Boots + Frayed Belt/Tattered Cloth Belt
4. This set requires level 13: Barbaric Cloth Vest + White Linen Shirt + Apprentice’s Pants + Squire’s Boots + Frayed Belt/Tattered Cloth Belt
5. This set requires level 10: Darkmoon Vest + Formal White Shirt + Neophyte’s Pants + Recruit’s Boots + Ancestral Belt
6. This set requires level 15: Whispering Vest + Orange Mageweave Shirt + Apprentice’s Pants + Journeyman’s Boots +Journeyman’s Belt
7. This set requires level 5: Light Magesmith Robe + Stylish Green Shirt + Frayed Shoes + Disciple’s Sash
8. This set requires level 4: Violet Robes + Bright Yellow Shirt + Acolyte’s Shoes + Thin Cloth Belt/Light Cloth Belt
9. Acolyte’s Robe + White Swashbuckler’s Shirt + Frayed Shoes + Thin Cloth Belt/Light Cloth Belt (though it looks good without a belt too)
As usual feel free to comment and make suggestions!
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I used a crude but effective bank alt method.
Yea, first I went 2 X The rock, full tuxedo, paid 2 Taurens (also dressed in Tuxedo) with knuckles to stand in the left and right side of me while I was blocking the entrance to Orgrimmar AH!…
But then i deleted my account and when i started over i did the following:
Leveled my bank alt to level 9, put some lowbie weapons and ruined scraps on him… and I just used the AH to buy stuff, have high level crafters craft it then sold the stuff back on the AH.
Since they thought this is my main they were like “no fee, you’re lowbie. here’s 5g to get you going. You have good initiative”
But they didn’t know that was my bank alt and i was closing in to 28.000 gold.
Yea, I think i’m a little greedy…