These mobs drop tons of [equip]!

And Gobies... They drop a lot of different crap...
From what I got, Purple Giles capes are their most common drop (take with a grain of salt)
Second goes to Blue mystique pants, level 70.
And third for pretty much every equip they drop. Specially shoes. -_-

For me it was the shoes... always the shoes.
1 Giles Cape
~ 15 Osfa Boots
~8 Lapiz Sandals
~12 of that lv.80 Pirate boot, I think
~10 Gold Moss Boots
I did get lots of Blue Mystiques but shoes were the big one for me. Luckily the 1 Giles Cape I did find had potential on it.

I hear they drop the level 75? Half Earrings too but I never found any....

And I've been keeping track of Bain drops in my sig, looks like gloves (magician/thief/bowman) and overalls (bowman/pirate/mage) are winning, mostly due to the fact that Bains drop so many different ones. I did find about a dozen Rose Earrings but none had potential. Shrug.

The big thing for Bains is that I can kill lots of them quickly and they drop tons of stuff - I was getting 3-4 hidden potential equips per hour easily.