French artist Hubert Duprat does it. Eww..just. But interesting! In case you're wondering, this is a Caddis fly larvae in a shell it made for itself out of the fancy materials Duprat gave it to work with. Duprat collects the larvae from their natural habitat of ponds and streams and puts them in an aquarium where they make their shells in a controlled environment consisting of gold, pearls, and other precious stones. via