Nevermind one that can do bubbles from your bike, how about this one that can do 14,000 bubbles a minute, you just need a low-speed motor, 3D printing (lots of filament), a bucket and a bar to hold it together. Oh and a fan too.
http://hackaday.com/2015/08/12/blow-14000-bubbles-per-minute-with-this-3d-printed-contraption/