Zombie head
Soured cream was removed from RuneScape after an update, but still exists in-game for those who had obtained it.
Soured cream detail

A soured cream was a random topping obtained with a plain wrap from the Squeal of Fortune between 5 May and 13 May 2013. It can be combined with a plain wrap to make a sour cream wrap. It gives a temporary boost to your agility level when eaten. At 99 Agility the boost is 13 levels. It was tradeable but has now been changed to untradeable.

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