He's a rough n' ready lumbering tank with a great big mad-on for the Merc With A Mouth. The last time these two faced off, Deadpool turned Rhino into a keychain. What happens when Deadpool tracks down Spidey's favorite rawhide in order to make amends for past misdeeds?
There is an abstract reference when Rhino has Deadpool as a keychain. The "Hello Skunky" is used for Hello Kitty, and "Sunsparkle Pony" is used for My Little Pony (page 12).