How about Ron or Levi, I'll send you guys a sling and you make a video showing it being used? I don't have any baby models at this time. How about making it an ISpot collaborative venture, or a think tank venture? The site can promote it in order to gain buzz and if it gets picked up it will be great publicity for the site and help with the tank's credibility and could start a snowball effect. I would be willing to share any gains or maybe even start-up the tank/scholarship fund.
I'm at the point with it where I really couldn't care less. Realistically I don't have the mindset or wherewithal to really do the whole thing by myself (take the video as an example of what I am capable of, "creepy"? thanks Michey

). But if enough of us put our heads together on it it could be the spearhead that gets the ball rolling around here. Just the news of an invention being picked up by a major retailer would give the site some buzz.
I'm writing this during my lunch break, so I don't have a lot of time to come up with more ideas but maybe someone else has some ideas to add along those lines.