I think I have something that you and your audience might like. We've re-invented the drawstring backpack, making it supercool to carry your stuff. Our re-tweaked design forces even pulls of the cords, making the bag easier to open and close. We launched it on Kickstarter and was 100% funded in two days. So far we've raised $105k (our initial goal was $10k). I hope you like it. Cheers.
http://www.mochibags.com/backup/mediakit (high-res images)