Heidi Klum has once again proven why she's the Queen of Halloween. The model stunned everyone at her 25th annual Halloween party in New York after transforming herself into a gigantic, bloody severed hand. The costume was actually a replica of her own left hand, complete with red nails, rings and a gruesome wrist wound. After months of preparation and five to six hours getting into the costume, Klum delivered one of her most shocking transformations yet.