The Harry Potter Patronus collection of Funko Pop! Vinyls has arrived! This is Ron\'s Patronus, a Jack Russell Terrier. A Patronus is a spell that can be cast to create a shield between yourself and a Dementor. It projects everything a Dementor feeds off, happiness, joy and elation. But the Patronus cannot feel despair therefore it cannot be effected by the Dementor. Ron\'s Patronus takes the form of a Jack Russell Terrier, as this is an animal that\'s commonly known for chasing otters. The otter, is also known for being the Patronus of Hermoine Granger, someone who Ron has been chasing the love of throughout the series of films.