I was pretty bored today so here ya go a green CH-53 You can check out the Nemesis Prime and Ultra Magnus recolors I did here: http://www.tfw2005.com/boards/showthread.php?t=136045 Background
lol, Springer was the only TF that turns into a green helicopter that I could think of. That and I remember someone haveing the idea to kitbash Voyager Blackout into Springer, though not to many people seemed to like the idea.
I actually would've preferred the movie design to do this, or maybe a jungle camo paint job on Blackout, if for nothing else than to give the Decepticons some color. Megatron, Starscream, Blackout, Scorponok, and Bonecrusher are all pale, tan/gray/beige earth tones. Meanwhile, the Autobots enjoy some color variety.
He looks miiiiiiiiiiighty shnazzy in green. Maybe Hasbro will take the hint and just so happen to do a "final battle" Blackout repaint in those colors.