Flamethrower Sofa Bike Made by Mack Carter Another awesome project! A unique Flamathrower Sofa Bike designed by Mack Carter (Mack TheKnife) https://www.facebook.com/mack.theknife.50 Okay, so here's the big project that I said I couldn't talk about it's a two-person sociable sofa bike you steer the front wheel... The back wheel is on a caster and will [...]