Anyone who enjoys a good train wreck click this kickstarter project
http://www.kickstarter.com/projects/objectiveelement/kolstom-classic-carbon-fiber-sunglasses
Guy put 3m di noc on some off the shelf frames, raised 80k and 1 year plus later is figuring out it was easier said than done.
There are a few pics of his mold design, and releasing failure on his facebook page.
Maybe if he stopped by here he would of saved himself some trouble.