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

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