You gotta love humans. One of my favorite segments of the art world is those who take something and make it into something else. The practice goes by a lot of different names -- found art, reclaimed art, recycled art, etc. You get the picture. By any name, it's a medium that speaks to me for some reason.
There's a group of folks out there that have taken one of the cooler product packages on the market and gotten creative with it. The Altoids tin is the medium, and imagination is the only thing required to turn it into something interesting. Some folks make things like remote controls, stereo speakers and belt buckles, others do major art instillations using nothing but Altoids tins. It's all pretty cool stuff.
My favorite "tinnovators" are the artists. A woman named Karen Burene in Michigan makes tiny little shadow boxes from the "curiously strong" mint tins. She's done everything from circus themed boxes to nautical ones featuring real seashells. Sheryl Westleigh and Desiree McCrorey are also tinnovators who make keepsake and jewelry boxes. The great thing about Altoids tins is that they're just so useful. That's why even non-tinnovators use them long after the mints are gone to hold everything from paper clips to spare buttons.
You can buy some of these cool items online, others you should look out for at your local art fair or craft show. Or you can get creative yourself and try your hand at a little Altoids art.