This may not be exactly what you had in mind, but when I was a child I had a rabbit pelt that was my "lovey". As I got a little older I used to masturbate with it. Eventually it got all torn up and stained so my mom gave me an old fur muff to use instead. Not sure she ever knew what I was really doing with it, but she may have wondered why a 14 year old boy still had a lovey ;-)
