Zombie head
Small XP lamp (The Bird and the Beast) was removed from RuneScape after an update, but still exists in-game for those who had obtained it.
Small XP lamp (Squeal of Fortune) detail

Small XP lamps were obtained by turning in 4,000 renown during the second world event, the Bird and the Beast. It rewards 92% of the experience of a small prismatic lamp for most skills, however certain skills (such as Divination, Strength and Defence) receive 105.8% experience instead. A bronze Armadylean token or a bronze Bandosian token is required to purchase the lamp.

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