From Pathfinder Treasure Vault (Remastered), which isn't enabled.

Oil of Ownership (Moderate)

ITEM 7

Price 55 gp

Usage held in 2 hands

Bulk L

Category oil

Activate (manipulate)

You can coat objects of 6 Bulk or less with oil of ownership, or "red-handed oil" as some call it. Once applied, this clear oil remains active for 24 hours. Anyone who touches an object coated with this oil comes away with a red stain that won't wash off for 1 week.

Pathfinder Treasure Vault (Remastered)ORC