I don't mind the Warlock Bonds, I think the Titans are the ones who need a different class item. The thing about Warlocks is their chest armour has a bigger impact on their appearance than the other classes. If you want you Hunter to look different change his cloak, if you want your Warlock to look different change his chest armour. Titans have their towel, which is just an attempt to give them something Warlocks and Hunters do better.