Big bones

Big bones are items associated with the Prayer skill. Big bones give 15 experience points when buried, 37.5 experience when used on a Gilded altar, 45 experience when used on a gilded altar with Incense burner lit, 52.5 experience when used on a gilded altar with both incense burners lit and 60 experience when worshipped at the Ectofuntus. Big Bones currently give the highest experience points of any other bone in free-to-play excluding Ancient bones, which the player can only ever receive five of these bones. This is over three times as much experience as bones, making big bones an extremely popular and the best method of training prayer in free-to-play. They are dropped by normally large monsters, such as any sorts of Giants, Giant Frogs, Ogres etc. The only free-to-play monsters that drop big bones are: hill giants, moss giants, giant skeletons, and ice giants, along with the bovimastyxes of Daemonheim.

Previously the price skyrocketed for big bones, most likely because of price manipulation clans. Collecting them in the Wilderness Bone Yard and selling them was also one of the quickest ways to make money available for non-members. However, Clan Wars was built over the Bone Yard's location on 10 December 2007, reducing the only supply on big bones respawn for free players.

Members can get big bones from the 'gamble' option when purchasing rewards at the Soul Wars arena, but they are likely to not get them. If they do get them, they will likely get them in quantities of 60 or more.

Since the 17 November 2009 update, big bones can be used with Bones to Bananas and Bones to Peaches.

Tips

 * For Members who have completed the Biohazard quest, there is an incredibly fast way to get big bones, made even faster if you have 51 magic. In the Training Ground North of Ardougne, many players train range quickly, so they leave the big bones from the ogres on the ground. Enough Ogres are killed that there will be a massive supply of big bones.
 * For free-to-play players, the fastest way to get big bones is the from hill giants located in the Edgeville Dungeon. In order to get easy access to these hill giants, the player needs a brass key which can be found inside the Edgeville Dungeon or bought from the Grand Exchange. Another good way to get big bones is in the wilderness just east of clan wars you can fill up your inventory then run down to fist of guthix put the bones in your bank and reapeat You could also just buy the bones themselves off the Grand Exchange. The additional Resource Dungeon added on July 19, 2010 created even more hill giant spawns and also limpwurt root item spawns. This requires 20 Dungeoneering to enter.
 * There was a glitch; it didn't allow the player to pick up big bones, even though their inventory was empty. It would come up with" You cannot take that at the moment." Some players experienced it lightly, only not able to pick up big bones, but some people weren't allowed to pick up anything. The glitch also prevented players from accessing the Grand Exchange, joining clans, and looking at their friends list. It is supposedly caused by a new anti-bot protection by Jagex that makes detected botters not able to pick up items. It is possible to get rid of the glitch by logging out and waiting for a few moments and logging back in. The glitch is not fixed yet as of 3. July 2010.