Since a few ATT releases there is a classic trinket shown which isnt transmogable. I bought it with my engineer but still there i cant mogg it. Please Remove it or add a info how to get it.

Item 10577 - in english goblin mortar

Seeing these 3, weird.
World Drop -> Classic -> Armor -> Trinket
ids: 10720, 10716, 10577

P.S. Also remove them from World Drops as they are craftable items and not drops. Done in d5a457a.

P.P.S.

Fixed by explicitly marking those 3 as uncollectible. If we find more like this we can investigate further.
5fc13c1

Re-opening since this is still an issue with other trinkets, e.g. alchemy stones and some others. ATT appears to be tracking the recipe as the collected status of the trinket itself.