This quest series is meant for adventurers, level 10 and up. The third quest in the series results in a tradeable level 15 craftsman recipe for a food item called "Mooshga Mush". (Writeup courtesy of community member Mikejf57.)

Hyena Jerky
Rec. Level 10
This is the first in a series of quests from Mooshga, who is just outside the gates from West Freeport to the Commonlands. You must collect 15 gnarled carrion hound ears from Carrion Hounds in the Commonlands. They are found just north of the low walls just beyond the West Freeport entrance. Bring them to Mooshga for some coin, experience, and 10 pieces of Hyena Jerky. This also opens up the Seafood Surprise quest.
(hyena jerky: Level 20 Duration 30 min. Effects:Increases Out-of-Combat Health Regeneration Per Tick of target by 28.)

Seafood Surprise
Rec. Level 11
Second Mooshga quest.You must collect 10 claws from Freshwater Crabs in the Commonlands. They are found at the end of the river in the far southeast corner of the Commonlands.Bring them to Mooshga for some coin, experience, and 10 Mooshga Mush. This also opens up the Crack Pot quest.
(Mooshga mush: Level 20 Duration 132 minutes Effects: Increases STR of target by 4.3, Increases Out-of-Combat Health Regeneration Per Tick of target by 28.)

Crack Pot
Rec. Level 12
The third Mooshga quest. You must mine 5 iron clusters in the Commonlands. This requires a mining skill of 20+. Bring them to Mooshga for some coin, experience, and the recipe for Mooshga Mush. This also opens up the Wisp-er Sweet Nothings quest.
(Recipe for Mooshga Mush: Level 15 Craftsman.)

Wisp-er Sweet Nothings
Rec. Level 14
The fourth Mooshga quest. You must collect 10 essences from Wisps in the Commonlands. They are found in the trees northeast of the Crossroads and around the Ulteran Spires to the west.Bring them to Mooshga for some coin, experience, and some wisp tofu. Completing this quest will open up the Rhino-rific quest.
(wisp tofu: Level 20, Duration 30 minutes, Effects:Increases Out-of-Combat Health Regeneration Per Tick of target by 28.)

Rhino-rific
Rec. Level 15
The fifth Mooshga quest.You must acquire 10 three toed feet from Rhinos in the Commonlands, generally found east of Pride Lake, west and a bit north of the Crossroads. The reward is 10 rhino muffins. This also opens up the O' Mugwump Where Art Thou quest.

O' Mugwump Where Art Thou
Rec. Level 16
The sixth Mooshga quest.You must go pick up some herbs from Mugwump in Nektulos. He is found at the foot of the Commonlands bridge, where you zone in at (-274.41, +0.25, +186.63). Pick them up and return to Mooshga for coin and experience. This also opens up the Overlord's Omelet quest.

Overlord's Omelet
Rec. Level 16
The seventh Mooshga quest.Mooshga asks you to gather 3 eggs from Giant Vulriches in the Commonlands. They can be found near +915, +420 far to the southwest of the zone.The reward is coin and experience, as well as opening up the Pachyderm Punch quest.
(overlord's omelet: Level 20, Duration 30 minutes, Effects:Increases Out-of-Combat Health Regeneration Per Tick of target by 28.)

Pachyderm Punch
Rec. Level 17
The eight Mooshga quest.You must gather five pristine elephant tusks from Plains Elephants in the Commonlands. They can be found on the south side of Dog Trapper Lake, as well as south of Pride Lake The reward is coin and experience. This also opens up the Mushroom Madness quest.

Mushroom Madness
Rec. Level 18
The ninth and final quest from Mooshga.You must collect 12 Dark Forest Cap Mushrooms in Netkulos. These are random ground spawn purple mushrooms near the Commonlands bridge area. Pick up all twelve and return to Mooshga for coin, experience and Mooshga�s Friendship Bracelet.
(Mooshga's Friendship Bracelet: TREASURED/ATTUNEABLE; Level 20; effects: +5 agi, +5 sta, +8 health, +5 power.)