This is a 3d printed kayak

Mar 22, 2014

"The kayak consists of 28 separate sections joined together with machined bolts and a bit of silicon. It’s water tight and actually floats. It took 42 days to print at a cost of around $500. But this wasn’t done on a Makerbot, but rather a large-scale home-brew 3D printer with a heated printing chamber to ensure the parts didn’t warp or crack during printing."

http://techcrunch.com/2014/03/19/this-is-a-3d-printed-kayak/
http://www.grassrootsengineering.com/blog/2014/03/18/worlds-first-3d-pri...