Dr. Jack the Helping Dog

Dr. Jack is a fund-raising dog based on a real service dog of the same name at the Mayo Clinic, who visits patients there and in the hospital to help them feel better. Ty sold him for about two months from December 2010, with all proceeds supporting Mayo Clinic's nonprofit work in patient care, education and research, and the company listed him as retired on its website in February 2011.

A companion book of the same name was available separately through the Mayo Clinic Store, ordered by phone or email rather than sold alongside the toy.