10 Weird Inventions That Made Millions

The Snuggie
During a Snuggie pub crawl, the crowd dances at Vertigo in San Francisco. (© Liz Hafalia/San Francisco Chronicle/Corbis)

Imagine you're sitting on your couch on a cold December day reading a book. It's chilly, so you decide to use a blanket. But wait! The blanket limits the use of your hands! What are you to do? Well, if you're willing to risk a little embarrassment, you can solve this problem by joining the millions of owners of sleeved blankets like the Snuggie, or its less-popular competitor, the Slanket.

Of course, you could simply wear a robe or a sweater when you get cold, but where's the fun in that?

There's no denying the Snuggie's appeal: More than 20 million Americans purchased a Snuggie between fall 2008 and Christmas 2009, at between $10 and $20 per blanket [source: Heher].

Sales continue to be strong, and Snuggies for kids and pets (yes, pets) have heated up as gift items. They're a common sight on airplanes and at sporting events, and have even inspired "Snuggie pub crawls" in which human blankets trot from bar to bar, their inebriation barely outpacing their mortification.

Are there even stranger inventions to come? Signs point to yes.