A signed Suicide Squad / Birds of Prey “Caution Tape” Funko Pop figure, autographed in-person by Margot Robbie as Harley Quinn. She is quite difficult to obtain. In-Person Signature. Authentication: GA (Global Authentics) Certification: GV918027 Collector Note: Signed Funko Pop figures featuring Margot Robbie as Harley Quinn are highly desirable. Due to her limited signing appearances, authenticated in-person signatures are especially sought after by collectors of DC and superhero film memorabilia. A standout collectible from one of the most popular characters in the DC cinematic universe.