Poobah's Dress

Princess Poobah's Dress is a one of a kind looking robe, obtained through a small quest line the Stranglethorn Vale, starting with 'Message in a Bottle' and ending with 'Mukla's Demise'
It is an excellent robe to have if you are looking for a one off design and want to look a little different from the rest of the casters.

The Postmaster's Band - (Postmaster Malown, Stratholme)
Swiftheal Mantle - (Taloring)
Princess Poobah's Dress - (Mukla's Demise, Cape of Stranglethorn quest)
Laughing Skull Gloves
Soulguard Girdle - (Taloring)
Guardian's Silk Footguards - (Armour Quartermaster)

Twilight Caster

I heard that the Twilight Cultist Robes were going to be untransmogable (is that a word??)  so I was trying to look for something that shared the same colours and could pass for a member of the Twilight's Hammer.

Robe of the Thousand Needles
Hallowed Pauldrons
Corp'rethar Ceremonial Crown
Barbaric Cloth Gloves
Silent Slippers of Meditation
Malefic Girdle
Grieving Spellblade
Handbook of Obscure Remedies

Glacial

This look takes a few piece from the Glacial set, a level 60 crafted frost resistance set. I think it would look great on a frost mage. Loving the detail in the robe!

 

Glacial Waistband

Glacial Robe

Glacial Slippers

Glacial Gloves

Mana Channeling Wand

Abjurer's Hood

Windchanneller's Mantle

Darkcaster Two - The Sequel

 Be careful when wearing this, you may be mistaken for a member of the Twilight's Hammer cult and painfully slaughtered by questing heroes.

I love how sinister this looks, however there is bad news for anyone who is Alliance and not a Warlock, you will be unable to get the horns. There is a Horde quest in Nagrand for the head, the warlock level 50 quests or the Felheart Horns that drop from Molten Core.
 
Stormspire Vest
Leggings of the Icy Heart
Ironweave Mantle
Netherweave Gloves
Mag'hari Ritualist's Horns
Stone-Worn Footwraps
Shroud of the Highborne
Cauterized Cord
Charmed Cierge

Level 60 Epic Pvp Gear - Mage

The same models as the 60 Priest and Warlock gear, but none the less, a cheap option to use for transmogging. The Alliance versions come with much better colour variants than the Horde.

Field Marshal's Regalia - Alliance
Warlord's Regalia - Horde

Goblin Mage

This is the gear I am currently grinding for on my mage. I am thinking that a tabard will look good to split up the mass amount of pink from the robe, and I have not decided yet whether I would like a head to show or not.

Vestia's Pauldrons of Inner Grace
Robe of the Great Dark Beyond
Energis Armwraps
Arcanist Boots
Illidari Bane Mageblade
Elementalist Star

Night Elf Mage

Night Elf Mages were another race/class combo that became playable in Cata, although I don't see many around. I was trying to get a Highborne look, with bright, glowy, arcane like colours.

Hallowed Garments
Mantle of the Tempest
Crown of Endless Knowledge
Belt of the Depths
Arcanist Gloves
Xintor's Expeditionary Boots
Saronite Spellblade
Prison Manifest

Jedi and Sith

Now you can use Transmogification to become a Jedi Master or a Sith Lord!
Remember the first time someone in your guild linked 'that sword that looks like a lightsaber' well now finally you can use it. These outfits are all cloth, so with the sword (ahem, i mean lightsaber) they are perfect for a mage and a warlock. The Wowhead Model viewer does not show the swords correctly, but trust me, they look brilliant.

Jedi

Spellfire Longsword
Living Cowl
Durable Robe
Phasing Boots
Bright Belt
Zaetar's Gloves
Resilient Mantle

Sith

Teebu's Blazing Longsword
Nightsky Cowl
Batwing Mantle
Black Velvet Robe
Ghostweave Belt
Kayser's Boots of Precision
Black Mageweave Gloves

Red Nemesis

This is a red version of the Nemesis lock set, and because it has no class restrictions can be transmogged by priests and mages too! These items all drop from The Burning Crusade instances, except the staff, which is a Blackwing Lair drop.

Vermillion Robes of the Dominant
Mantle of Three Terrors
Demonfang Ritual Helm
Gloves of the Deadwatcher
Sash of Serpentra
Staff of the Shadow Flame

A Soothfancy Gnome

 I came across a little gnome in Tanaris that looked like this, and I instantly felt the need to recreate it and share it with the people of the Internet, so they too can create gnomes that look like this. They can run around their servers or battlegrounds being a stylish little genie gnome.

Red Mageweave Shoulders
Robes of the Royal Crown
Runecloth Gloves
Dawnspire Cord
Spellweaver's Turban

Magic!

The Hat, I want one. I'm not a gnome hater so this looks adorable, and not disgusting!

Kentic Amice
Lesser Wizard Robe
Clutch of Andros
Coldstone Slippers
Shadowy Laced Handwraps
Wicked Witch's Hat
Blue Diamond Witchwand

A mage fit for Sunwell

All of this gear comes from the Burning Crusade. Taloring patterns and some Sunwell drops. I'm afraid it might be hard to obtain the shoulders and helm but I'm sure there are easier options out there.

Shoulderpads of Knowledge's Pursuit
Helm of Arcane Purity
Boots of Blasting
Belt of Blasting
Sunfire Robe
Sunfire Handwraps
Crystalheart Pulse Staff

It's Pink!

I can't think of many items that change their look depending on which gender is wearing it, however this is one of them, it looks fantastic on a female ...not so great on a male though.


Mooncloth Shoulders
Mooncloth Circlet
Mooncloth Gloves
Vestments of the Shifting Sands
Spellfire Belt
Black Mageweave Leggings