Zombie head
Cookie (Spring Fayre) was removed from RuneScape after an update, but still exists in-game for those who had obtained it.
Cookie (Spring Fayre) detail

The cookie was a food item available during the Spring Fayre. It was given by speaking to Kristlin and asking for a cookie. The cookie healed 250 life points. It was only possible to have one cookie at a time - Kristlin would not give player's another until they had eaten the one they already had.