Zombie head
Rhino XP lamp (Summoning) was removed from RuneScape after an update, but still exists in-game for those who had obtained it.
[FAQ] • [doc]
Rhino XP lamp (Summoning) detail

A Rhino XP lamp (Summoning) was obtained by correctly answering a question in the Royal Rhinos holiday event. It grants 50% of the experience a small prismatic lamp would give.