The Grog Bowl artifact can be found at Durthang Outskirts, in the south-western part of Udûn.
Grog Bowl, Orcish, Third Age, 2942 "The myth of the filthy, crud-encrusted Uruk grog bowl is just that. Uruk trainers beat it into their charges to keep their grog bowls as clean as possible to avoid the old soldier's disease.
These bowls are commonly made of clay and baked in huge kilns, but Mordor has proved a fruitful realm for the Uruks, and now some bowls are made of metal or wood."
"We'll go tonight. No more being bossed around by that damned Uruk-hai. We'll sneak into the barracks and bleed that shrakh dry. He won't be so high and mighty when he's dead. And we'll run the place. You and me. All's for us.
Fresh meat? More grog?
We won't be going hungry, that's a fact."