Please Read
The Main Reason You Probally Want A Bank Character Is To Store Stuff There So You Always Have More Room On Your Main.And Also The Funnest Part Of A Bank Is You Get To Make Her/His Character Look Awesome!
Also Guild Banks Are Best To.T.I.P : Make The Character On Your Mains Side/Realm.
Designing
These Are Some Items I Suggest That Will Make Your Character Look Cool.
Black Tuxedo Jacket
Black Tuxedo Pants
Tuxedo Shirt
Nobles Monocle
Soap On A Rope
Booty Bay Rings
Blood Elf Or Draenei Level 1 Weapons/Whatever
Dark Black Gloves/Bracers/Boots.
Haircut (Barber)
And A Bank Name
Overpowered-Enchants (Design)
T.I.P This Also Works Great For A Level 1 Twink
Hope This Shows You What Banks Are For And How To Design Your Level 1 Bank Character ^^