A few weeks ago Onell Design shipped out Hammerden, a Hammerhead-colored take on the Pheyden action figure.  It's pretty cool!  I posted a review here.  It has since sold out, but along with Greeden and Pheytooth it's a pretty swell group of aliens.

If you aren't yet checking out Glyos, you should - in addition to the core Onell Design figures, there are a ton of 3 3/4-inch action figures using the peg-and-socket structure for customizable action figures.  Check out those 3 3/4-inch Fallout figures at Target and GameStop, as well as The Outer Space Men and Knights of the Slice, to name a few.  What I wouldn't give for Star Wars to do something in this format!