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/