Zombie head
Clockwork crown was removed from RuneScape after an update, but still exists in-game for those who had obtained it.
Clockwork crown
Clockwork crown
Release date 12 November 2017 (Update)
Members No
Slot Head
Recolourable No
This cosmetic will not display
in PvP-enabled areas.
Clockwork crown chathead

The clockwork crown is obtained from 7,000 clockwork pieces during the Going Like Clockwork event.