A "bobblehead" is a small figurine with a large head that is attached to the body with a spring or a similar mechanism. The head is designed to bobble or move around when touched or shaken. Full definition
The ValleyCats have a long tradition of making political figures famous through their set of bobblehead dolls. (nystateofpolitics.com)
In fact, it devotes a section to «eclectica,» where you will find animated — and annotated — bobbleheads of Justices Antonin Scalia, Sandra Day O'Connor, John Paul Stevens and William H. Rehnquist. (lawsitesblog.com)
The overall presentation of MLB Bobblehead Pros feels schizophrenic. (tech-gaming.com)