A site for and effects house that build static and animatronic prop animals for use in films has a page of used animal props, including animatronics, for sale, from surprised hamsters to creepy vampire bats:
Animatronic (Head Nod/Head Tilt Animation)Link (Thanks, Waylon!)
These creepy little crawlers was scaring audiences on Halloween (2005) in the CBS movie "Vampire Bats". There were 32 pieces, made up of animatronic heroes, Crawlers, Flappers and static props that were used in the production.
This is a radio radio controlled rod puppet. Animations include a head nod and a head tilt.