The super skrulls are a small sampling of concept art Jeremy Love created for a failed Avengers project. The skrull toys that came out at the time of the movie (and confused people as to who the enemies in the movie would be) were based on designs for that failed project (the Avengers Battle Game with 18 miniatures is $12 at Amazon). Also by Jeremy is this jedi-hunting droid design:
This design was produced as a miniature, and you can find a few for around $4 at eBay. Via.