I wish this was a concept design, but it's not. Hammacher Schlemmer actually sells this Seven Person Conference Bicycle for a whopping $19,000! The circular bike supports up to 1,400 pounds which means you can take Mom, Dad, Uncle Joe, Aunt Betty, the next door neighbor, and his family on a joyride at least up and down the street. The bike has seven sets of pedals that propel the bike forward, while one person steers the bike along. The shiny red bike is so popular, it's actually sold out.