Covering sports and fitness for a number of sites, I come across bicycle designs nearly every day. I've seen folding wheels, airplane bicycles, bicycle sailboats and all other kinds of innovative, off-the-wall cycles. But this is the first one I've ever seen made out of bones.
Actually, it's not made out of bones so much as it's made to emulate bone. The designer Sungkuk Park sought to make a bike that takes advantage of the lightweight but strong nature of human bone. It's not clear if the bike is also supposed to break under pressure, the way bone does, but we'll give the designer the benefit of the doubt and say it's not.
I don't know, seems to me that there are enough lightweight but strong materials out there (aluminum, titanium, carbon fiber) that the time to make a bike based on bone is long past. But, since it's almost Halloween, we'll just call this a festive design in time for the holiday. It definitely looks like something the neighborhood kids should be riding around trick-or-treating on.