the nap hat and other curiosities

This is...a nap hat. You know you want one. It's designed by Kawamura Ganjavian, and you can read more about it on their website.  

But that's not all! They make lots of other rad stuff as well! Such as this:

As far as I can make out, this is...recycled light. Read about it for yourself. 

Then there's the Oyster.

 Heat Me.

And, of course, 

The Earshell.

Check out their website. They have all sorts of projects, ideas and art profiled (and other things I'm not sure how to classify). You're sure to waste lots of time browsing through the mind-boggling array of items (and buildings and social experiments) that they've created.