Strange Yellow Sack is a level 40 Common item in AION Retail 7.8. The quest A Dangerous Artefact rewards it.

Where to get

Rewarded by

Quest	Reward	Quantity
A Dangerous Artefact	Basic reward	1
The Klaw Threat	Basic reward	1
Creating a Monster	Basic reward	2
[Group] Korumonerk's Pauldrons	Basic reward	1
[Group] Korumonerk's Backpack	Basic reward	1
[Group] It's for Your Own Good	Basic reward	1
Cursed Guardian	Basic reward	1
Testing Your Mettle	Basic reward	2
A Lost Daeva	Basic reward	1
Kikananta's Loyalty	Basic reward	1
Light up the Lighthouse	Basic reward	1
Putting on the Speed	Basic reward	1
[Group] Besting the Bodyguards	Basic reward	1
[Group] Legendary Armour	Basic reward	1
[Group] Incredulous Nuaka	Basic reward	1
[Group] The Elixir of Life	Basic reward	1
[Group] Pollution in the Palace	Basic reward	1
[Group] Atla's Escape	Basic reward	1
[Group] Looking for Strange Aether	Basic reward	1
Honing Your Skills	Basic reward	2
[Instance/Group] Himusus' Revenge	Basic reward	1
[Group] 2 Fragments of Agrif's Rage	Basic reward	2
Orders from Reshanta	Basic reward	2
Wings of rumours	Basic reward	1
The Incantation of Governor Votan	Basic reward	2
Test flight	Basic reward	1

Similar items

Item	Grade	Level
Construction Odium	Common	40
Ormea Cocktail	Superior	40
Griffon Aether Pasta	Heroic	40
Extraction tool for Abyss weapons (fabled; level 40)	Fabled	40
Normal Supplements (Eternal)	Eternal	40
Normal Supplements (Mythical)	Mythic	40
Fresh Root	Junk	40