Looks to me like a Letterman bobblehead.
Maybe it's MWM's avatar but I keep seeing Jim from the Office :dunno:
it also looks a little like
Looks like catcher Jake Taylor (Tom Berenger) in Major League.
It looks like Dunn had a guest appearance on Miami Vice.
That's one bobblehead I don't care to possess in my collection.
Could easily be a Will Ferrell bobblehead from Semi Pro.