Why Are These Sea Urchins Sporting Cowboy and Viking Hats?
An aquarium owner noticed his sea urchins covering themselves with rocks and other objects, so he started 3D printing goofy hats. But a marine biologist confirms that sea urchins are making more than fashion statements.
www.newsweek.com
I kinda want one of the Viking helmets, then 3D print it a tiny beard.