Youtube’r CAVE PCB has started a very nice set of videos on all kinds of CAVE related art. Including posters, instruction sets, post cards, magazine items.
It is quite exiting to see what is out there in the world (and stuff that I have missed!).
#1 Kit Poster collection
#2 Postcard set
#3 Deathsmiles postcard set
#4 Ibara The 0th Story