I'm the Director of an action b-movie some of you may have seen called 'Zomblies' http://www.zomblies.com
(100% of those muzzle flashes are fake, mostly created with FxHome Muzzleplug!)
We are now producing a series of films set underwater - and are running a KickStarter campaign to raise funds. We are giving away some great stuff to supporters including plans to build your own LED waterproof kino-flos and a series of practical Indie Action Tutorials for everything from silicone make up to compressed air cannons!
Check out the rewards video here: http://vimeo.com/32947657
And the Kickstarter page here: http://www.kickstarter.com/projects/realmpictures/explore-the-underwater-realm