You start the quest chain at Pearhunter Phin on an island just outside the South-West exit of Falanaar.
Do The Thing-Intereact with one of each of the items around Phin including a small crab. After there should be a glowing pearl on the ground, loot it to complete the quest.
Mrgls of Endearment-When you take this quest Phin runs off, don’t follow him. Around the area there are blue crabs which you need to kill to collect: Crab Oil, Fine Sand, Intact Crab Shell & Snapping Crab Claw. Once collected go over to Phine at the building just North-West of where he started and show him all of the items. (You may be able to just start by showing him the sand to speed it up) Now turn in the quest.
A Mlrglrmg for Grlmrgl-Phin will join you to search through the Conspicuous Dirt Piles & Conspicuous Sand Piles until he finds something he feels is adequate. Go back to the building where you took the quest and turn it in to the murloc there.
Mglrgrs Of Our Grmlgrlr-Go North East and start killing the pairs of Fal’dorei Hunters (refer to your map to find the next set) until you find Mr. Mrglglrm. Return to the building where you got the quest and turn it in for your toy and ancient mana item.