I'm tryin to get Guinness' halloween costume made, he's going as Fluffy from the first Harry Potter book (Fluffy is a 3 headed dog for those nott familiar with Harry Potter). So basically I'll be taking the heads from 2 stuffed toys and attaching them to his harness. With that in mind I'm looking for toys that are a reasonable size (not too big or small), and pretty cheap. Guinness is a tri color, sos I'd like to stick with that color for his other heads.

i'd appreciate suggestions if anyone knows of a good toy for this purpose.