Along with a bucket of slime, players may use a pot of bonemeal to make 5 ecto-tokens. The bones used in the bonemeal give 4 times the Prayer experience when used to worship the Ectofuntus. They are sorted separately per type of bonemeal in the bank account but are all labelled bonemeal. You can get the type via the examine option of the pot. It shows: A pot of crushed [type of bones]'.
List of bones