Of all the Firefly/Serenity merchandise out there, this Fruity Oaty bobblehead trio has to be my favourite. Found here.
And what's this Fruity Oaty thing all about, you ask? It's the catalyst for a pivotal scene in Serenity, a movie that--if you haven't already seen it--must be watched (but only after you watch the one-season TV series Firefly, which you should do immediately). You'll thank me (cash gifts are also acceptable).
Now enjoy the Fruity Oaty Bar ad in all its surreal glory: