No, this is not an exhaust pipe for your bike (that'd be silly). It's Bloom, the pedal-powered, environmentally friendly attachment that produces seed-filled bubbles meant to transform concrete jungles into lush forests. Using nothing but the wind, a seed pellet, and a little vegetable based soapy water, the Bloom disperses bubbles into the cracks and crevices of our congested cityscape. Then nature takes over and the seedlings mature into vegetation, which is promptly exterminated by the department of public works. Just kidding. This is actually a pretty ingenious idea when you see how it works, and is one of many from Design 21's "Power to the Pedal" design competition.
Anyone around here ever put together a garden? Okay, stupid question. Getting things to grow is a little more complicated than putting a seed in a bubble, or we would all be building gardens with bubble machines.
The biggest problem with this concept is that I am already labeled an eco-nazi by friends and family, and this would put me into gay eco-nazi territory. Not that there is anything wrong with being a gay eco-nazi, mind you. I'm just saying.