pyrite stonetender, you sir are evil. this npc is to cataclysm like old man barlo was to burning crusade, no doubt about it.
it's no wonder that pebble is part of an achievement. it's pure luck if you even see the daily offered more than once a week! at least this companion is guaranteed... eventually. it's just a matter of patience and time before one can complete the achievement. thankfully, the quest isn't difficult or else that would be a double facepalm from collectors all over.
blizzard has found a way around the whole "bugging" dailies technique by putting the rotating dailies on different NPCs. this pretty much ensures that the pebble daily cannot be picked up twice in a row unless the NPC actually offers it two consecutive days. or you're just that. good. and you're lightning fast as soon as dailies reset. i've yet to see it happen though. once it's been rotated out, it's out for the day.
besides waiting for the rare pebble daily to pop up, i've been going at archaeology relentlessly. specifically the tol'vir artifacts. the crawling claw is the last pet that this secondary profession has to offer me, but it too has been elusive.
rng plays a large part of archaeology, and i guess i've used up the majority of my luck. with 28 common tol'vir solves, i'm wondering how many more to go until the companion pops up as an artifact for me to piece together.
to quote coldplay: "Nobody said it was easy, No one ever said it would be this hard."
but on a less emo-note, this has officially become my archaeology theme song. "dig dig dig dig..."