I agree with this, the goggles would be a nice item to drop. Also the Master Reliquary item, and perhaps a limited number of the unique tag-along pets.
Tokens for the unique accessory items would also be good.
And some of the rare dyes as well. Skull White, Chaos Black, Blood Red, Oogaboogaly Purple. Maybe some of those greater than RR Rank 80 dyes.
Oh, and a High-Energy Plasma Rifle...