Canopic Jars (ToO)
There are at least two different kinds of Canopic Jars in Lara Croft and the Temple of Osiris:
Story Related Canopic Jars
First there are those jars that contain parts of Osiris and that are discovered by Lara and her companions by finishing certain tombs in the game, e.g. the Tomb of Khepri. The characters need these parts to reassemble Osiris in order to defeat Set.
Secondly there are Canopic Jars that are left behind by other players that are on ones friends list. Some times when a player dies a jar will appear in his or her place. Other players can collect theses jars as an additional challenge, for Points and other rewards.