http://www.grandchallenges.org/Explorations/Topics/Pages/NextGenerationCondomRound11.aspx
"Application of knowledge from other fields" is explicitly called for. Bill looks for "attributes that increase ease-of-use" and designs that make it "easier to properly apply" a preservative.
Of course The Slingshot Channel HAS to come forth and help the visionary billionaire on his lofty quest. Therefore, this video brings to you the world's first condom applicator slingshot gun!
See for yourself.
Please keep in mind this is comedy and NOT a serious project. :)
