Mr Jelly has numerous prosthetic hands to replace the one he lost in surgery. This is his normal hand used as times when he doesn't need a specific tool, it has been worn down to look like it has seen lots of use.
The hand is an original sculpture looking like a representation of a mannequin hand, it has a connector at the wrist to attach to his stump end.
The marks, scratches and paint chips are unique, the paint loss at the side of the wrist can be compared to the pub magic show scene when he removes his hand. It can be matched to the Mr Jelly promotional picture by identical chips and stains to the fingertips.
