The fine folks at MakerBot have impressed us enough with their Mario-themed RC racers and self-replicating 3D printers, but now the collective is looking to save mother nature with Project Shellter. Turns out, there's a housing shortage in the oceans. Harvesting of shells has left many hermit crabs with no option but to take up residence in bottle caps and other debris they can squeeze their soft bodies into. Maker
