Here's a smart, eco-solution to some sticky business. The chewing gum problem isn't about cleaning gum off pavements. It's about changing people's behaviors so that they will want to put their gum in a bin, and at the same time could be a good tool for advertising or something like this with the added value of the recycling topic.

Invented by stylish women who were tired of gooey stilettos, the contraption had to blend function and fashion. "It had to get attention and raise awareness of responsible gum disposal, so we covered it with a fun, eye-catching spiral design and made it scream bubble gum pink," says the site.