Some products look like a good idea, but they just don't seem like they're going to make it without a huge marketing effort. Take, for example, the Sportlens.
Looks like a halfway decent idea. Protects the eyes (did you know UV can cause cataracts later in life?). Protects your face from UV. No optical distortion. The shape reduces glare.
However... look at them. People aren't really going for that space-age look lately. I actually like them, but I'm a little weird anyhow. What would it take to get people wearing these? It's obviously a fashion thing, so we would need some sort of product placement.
I'm thinking that a simultaneous product placement with Tom Cruise in some sort of futuristic film, and on one of the younger-generation actors in a contemporary-set film. You need that younger actor cred to get the message out, but Tom Cruise gives the product some legitimacy... believe it or not.
Why the hell am I thinking about this?