Conga dance override token was removed from RuneScape after an update, but still exists in-game for those who had obtained it.
Conga dance override token is a walk override token that can be won from Treasure Hunter during the New Year's Resolutions promotion from 5 to 11 January2017. It is used to unlock the Conga Walk animation override. It is destroyed after claiming. The override is automatically unlocked upon completing the list of resolutions five times, unless the override was already unlocked, in which case the token is rewarded.