I was PMing Jc a while ago, and he was supposed to contact me about posters and possibly passing along the Axiom logo JPEG to make my own, but haven't heard back from him.
Quite a few users where interested in the posters that he has in his home theater.
There were plaques available on Ebay, but I just did a search to no avail. There is an eBay seller called" home theater signs and more"; they might make one for you. Here's a
Link to their eBay store.