The Corning Museum of Glass in Corning, NY concerns itself with all things glass. The current featured exhibit is the marine invertebrate models of Leopold and Rudolf Blaschka, which they painstakingly created in glass between 1863 and 1890.
By coincidence, I had the occasion to visit the conservation lab at CMoG last October, ahead of the Blaschka exhibit's opening. There I saw a handful of the models being cleaned and repaired. As an experienced marine aquarist (in the long ago time) I can attest they were impressively detailed and realistic.http://www.cmog.org/collection/exhibitions/blaschka
Click to enlarge:
Some are also being posted to the CMoG instagram account: https://www.instagram.com/corningmuseum/