originally posted in:Sentinel Orbital Corps
For titans out there, there are a pair of gauntlets called Mau'ual's maulers which can be dropped from the red brother in the strike shield brothers. They look like the red brothers armour.
For Hunters, the psion flayers from the dust palace strike drops their cape. (Colour of cape depends on element of psion)
For warlocks on the playstation, the echo chamber strike has a chance to drop the theosyion vibrissae gauntlets. Fallen saber strike also drop the devouring maw helmet for warlocks.
Full list can be found here:
http://www.gamefaqs.com/boards/704532-destiny/72552486