Cloth Runecloth Robe

Runecloth Robe with matching items and a cool looking staff from Scholomance, all details here.

Leather Wildcaller black set

Sexy black look with a nice looking staff available from a quest in Shadowmoon, all details here.

Plate Ice Set

Something icey for winter!  All details here.  The gloves require Frozen Rune to craft, this is no longer available unless someone has hoarded them, an alternative would be World Keeper's Gauntlets.

Cloth Robes of the Exalted

Lovely dress from Stratholme with some matching items, all details here.
NB Staff is no longer available in game there are alternatives, such as Staff of athena.

Cloth Khintaset Robe Set

Unusual looking brown set, all details here.

Leather Darkmoon vest

Purple, my favourite colour!   Got to get this set , all details here.  The boots in the original link are rather hard to get, so instead I think these will do.

Cloth Willow Robe

Willow Robe combined with some Mistyreed items and an awesome staff - all details here.

Cloth Crackling Flame

Distinctive red and purple look and an amazing staff, all details here.

Leather Golden Girl

A nice gold look I put together using some Cenarion items and other cream/gold matching items, all details here.

Leather Embrace of Starlight

Some green items to match this nice chest too, all details here.

Leather Don Rodrigo's Poncho

Finally something that matches Don Rodrigo's Poncho!  Full details here.

Cloth Soul Vest

Soul cloth 3 piece set plus some matching items I found, all details here.

Shield Corrupted Carapace

Tank shield from Asira Dawnslayer in Hour of Twilight , details here.

Shield Ward of Incantations

Intellect shield that drops from Jaina in End of Time, details here.