|Heading to UBRS!|
The quest General Drakkisath, Hand of Nefarian that you pick up from Acride at the beginning of the instance offers a few unique colored weapons.
Sword of Nefarian's Hand - This is a two handed sword that isn't a unique model, but it has a unique color. This is the only silver and green looking sword with this model.
Staff of the Second Orb - This staff doesn't have a unique model, but it has a unique color. It is the only version of this model that has a pink gem at the top and a more decorated staff bottom.
Vaelan's Claw - This dagger is a unique model and color. It also gives off a purple glow around it.
Truestrike Shoulders - Leather shoulders that have no unique model, but a unique color. They are the only orange/gold colored shoulders of that model.
Solakar FlamewreathCrystallized Girdle - A teal leather belt. I believe this is a unique model and color.
In the room of this boss, you can get the Leeeeeeeeeeeeeroy! achievement that nets you the title "Jenkins". This achievement is going to be turned into a Legacy Achievement, so get it now. You will still be able to get the title after the revamp via a different method.
Polychromatic Visionwrap - A cloth chest piece that mimics the look of the Aboriginal Robe. A unique cloth chest model, and could match well with the rest of the Aboroginal Set or be used by a leather wearer with the Mystic Sarong for RP purposes.
Schematic: Hyper-Radiant Flame Reflector - A schematic for the collectors out there! Only available from this boss!
This guy is not a boss, but he is located in the Halls of Blackhand. He has the chance to drop a few blue items and some Blacksmithing patterns.
Mastersmith's Hammer - This one handed mace isn't a unique model, but it has a unique color. It is the only white and gold mace, and it shares the same look at the no longer obtainable Hammer of Revitalization.
Plans: Masterwork Stormhammer - A plan for the collectors out there! Only available from this mob!
Plans: Arcanite Champion - A plan for the collectors out there! Only available from this mob!
Dragonskin Cowl - A light purple cloth head piece. It's a unique color since it's a lighter shade of purple, maybe even lavender.
Gyth's Skull - A plate helm that has no unique model, but a unique color. It's the only red with white trimming colored helm of the model.
Brilliant Chrimatic Scale - These are used in crafting the Chromatic Cloak. The pattern is unobtainable today, but if you find a leatherworker who has it, it can still be crafted. It might be a good idea to stack up on some of these if you have the pattern.
Warmaster Legguards - These plate legs are Brutish Legguards lookalikes. These would be good to have for a placeholder until you get the Brutish ones.
Eye of Rend - This item isn't unique at all, but I really like the name of it, and the fact that it's the same eye patch that the boss is wearing.
Felstriker - This is an epic drop from the boss. I think some twinks still like to use it, but I'm not 100% sure. So if you're into twinking in the 60 bracket, this may be something to take a look at.
Blackhand Doomsaw - This polearm doesn't have a unique model or color. It does share the same model as a polearm the Alliance and Horde can get from an Outlands quest. I know some people may have did that quest, so this may be your only option.
Dal'Rend's Tribal Guardian and Dal'Rend's Sacred Charge - These two swords are a set and very cool to have. While the Sacred Charge shares the same color with some heirlooms, the Tribal Guardian is a unique color for the model.
Spiritshroud Leggings - Cloth Leggings that have no unique model, but a unique color. They are the only pale blue/white/and black colored pants of that model. They are similar in style to the Pants of the Naaru, but have more of a bottom to them.
Frostweaver Cape - I believe this is the only orange version of this cloak model. It's a unique color, and it shares a similar model with the unobtainable Earthweave Cloak.
Blackmist Armguards - Navy colored leather bracers. These are a unique color and currently the only bracers that match perfectly with the Stormshroud Set.
Blademaster Leggings - Leather leggings that have no unique model, but a unique color. They are the only red colored pants of that model.
Seeping Willow - This green and gold mace is a unique model and color.
Pattern: Red Dragonscale Breastplate - A pattern for the collectors out there! Only available from this boss!
Recipe: Flask of the Titans - A recipe for the collectors out there! Only available from this boss!
Blackblade of Shahram - This is an epic drop from the boss. It shares its model with the Massacre Sword, but it a unique color of silver and purple.
Serpentine Skuller - This wand is not a unique model, but it has a unique color. It's the only skull version of this wand to have a purple and blue hilt with a white skull.
Starfire Tiara - I'm going to say this cloth headpiece is a unique model and color. It shares the same model with the Holy Diadem, but this item is claimed to no longer be in the game. This is great to use for a Wonder Woman inspired transmog!
Ironweave Cowl - Part of the cloth set Ironweave Battlesuit.
Handguard of Savagery - These mail gloves have a unique model and color. They are tan and pale green. They share the same model with the no longer obtainable Wastewalker's Gauntlets and Desertstalkers' Gauntlets.
I may have made some mistakes, so if you find an error please feel free to leave a comment below! I feel if you start farming now, you probably will have more than enough time to get all the items you want! This doesn't mean some of the item models won't be reused, but it's better to grab something now than regret it later! Good luck and happy farming!