Zombie head
Bronze idol arms was removed from RuneScape after an update, but still exists in-game for those who had obtained it.
[FAQ] • [doc]
Bronze idol arms detail

The bronze idol arms are a common reward from the Squeal of Fortune. They are part of the Grinning idol promotion. Combined with the body and legs for all players, as well as a head for members only, to get experience in the Cooking, Firemaking, Hunter, Slayer, Strength and Divination skills.