I'm willing to bet this is one saddle design that doesn't make it into the pro peleton: the 'Manta'

The Manta bicycle seat - umm... wow

First of all, let’s just say it: this is the most bizarre-looking bicycle saddle of all time. Feel free to disagree, but c’mon, just look at the thing - it’s like the bike is sporting a leaf rake, or perhaps even a rib cage. Like most funny-looking bike seats, however, the Manta promises to rectify one of the most common of cyclists’ complaints... the all-too-familiar “numb bum.”