It's a common trope in cartoons, but in the real world, you just can't get a bottle to hold sound. And what kid hasn't tried? No verbal messages in a bottle for us, thanks to the laws of physics. At least, that used to be the case. The Re: Sound Bottle designed by Jun Fujiwara does exactly that.
Though it's not as simple as just yelling into an empty water bottle, the Re: Sound Bottle not only keeps the sound inside with its cork (kind of) but also rehashes them to make neat little bottled "songs" with all that found noise. It certainly makes for one weird message in a bottle. [Vimeo via This Is Colossal]