Twinfall Coterie

The standard armor is what everyone (except casters) have to wear:
http://www.wowhead.com/transmog-set=198/nimble-knife-armor-recolor (minus helmet)
http://www.wowhead.com/item=121128/haustvelt-boots&bonus=1826:1637
Guild Tabard (regular)
Common Gray Shirt
Belt of your choice

Warriors and paladins can also choose to wear the plate set, if they want to:

Guild Tabard (regular)

Casters (priests and mages) are free to wear whatever they want, however, it has to fit our tabard and must be low-fantasy.

You can use whatever weapons and shields you want, so long as it stays low-fantasy!