Dinosaur Comics has a fairly hidden feature where you can get an overlay that replaces the regular characters with, for instance, XKCD or Problem Sleuth images. This script makes it easier to get to those overlays by providing a drop-down box to select from.
Dinosaur Comics has a hidden feature where you can get different overlays on top of the comics, so hidden that it's impossible to find if you don't already know about it, and even then it's easy to miss some of the overlays, since there are so may.
So this userscript adds a dropdown menu below the comic that allows you to select an overlay. There's also a little Dromiceiomimus icon next to the dropdown that shows an options menu on mouse over.
