Wow! that is even better than what Nikon offered to celebrate theirs.
Yesterday I was at a fossiles museum in Byblos, Lebanon
http://www.memoryoftime.com/english.html
And I met a guy using a film Pentax body, he noticed my EOSRP and made a joke:
"You know the common point between me and this museum owner?" we had a good laugh obviously they both own fossiles but he added my fossile still takes good photos.... A typical Pentaxian/or is Pentaxist?