Saving Hermit crabs

Source, October 22, 2011:":
From the article:

Project Shellter intends to leverage the Makerbot community's design talent and network of 5,000 3D printers to design and produce shells for hermit crabs who face a species threatening, man-made housing shortage. Hmm, sounds familiar. (...) One of the challenges is that no one knows yet if hermit crabs will live in man-made plastic shells. And if they will, what shell designs would make the best hermit crab homes. Makerbot is setting up a hermit crab.