There are several ways to obtain the wolf bones needed for the quest. If you have the money to spare, you can save a little time by purchasing them from the Grand Exchange in Varrock before going to meet Pikkupstix in the first place. However, if you’re at least able to dodge some wolves on White Wolf Mountain, there’s no real reason to waste your money here.
The easiest way to get the wolf bones is to start walking up White Wolf Mountain, just west of Taverly. Not too far up the mountain, you’ll find a corpse that turns out to be the dead body of Pikkupstix’s missing assistant, Stikklebrix.

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If you search the corpse, you’ll find two sets of wolf bones that you can take back to Pikkupstix.
If you happen to lose or accidentally bury these bones, you can also get wolf bones by killing any wolf in Runescape. The wolves on White Wolf Mountain are the closest ones to the quest area, but if you have a low combat level, they might give you a bit of a problem. One alternative is to kill a couple of the lower level wolves found in the Stronghold of Security. (The entrance to the Stronghold of Security is found in the middle of the Barbarian Village just south of Edgeville.) These wolves are non-aggressive in addition to being much lower level, so it’s a much easier fight. If you’re still having problems, you can purchase the wolf bones from the Grand Exchange or trade directly with another player.