Quoted from TFraelich:

Mr. Bell,
I act as outside counsel for Planetary Pinball. You are well aware that I have contacted you multiple times about your unauthorized advertisement and sale of numerous products for Williams/Bally pinball machines. I even have a signature confirmation signed by you, "Peter Bell" confirming that you received my initial letter. Unfortunately, you have steadfastly ignored these communications and continue to infringe trademarks and copyrights to which you have no rights. Several examples of such infringing products can be seen on your website.
As most people that have ever watched a movie on Blu-Ray or DVD know who have seen the warning at the beginning of the movie, the unauthorized sale of goods which violate the trademarks and copyrights of others can subject not only the seller to legal jeopardy, but anyone trading in such goods as well. Thus, you are willfully placing your customers in legal jeopardy by selling them unlicensed products. Planetary Pinball wants to serve the pinball community and wants to maintain good relationships with those in it, but it cannot continue to countenance your actions. There really is no question that Planetary Pinball licensed its rights to the relevant Williams/Bally intellectual property for a considerable sum and you did not. I strongly suggest that you find some other way to enjoy the hobby without breaking the law and infringing the rights of others and I sincerely hope that you choose to conduct yourself appropriately in the future. Of course, if you have some legitimate explanation for your behavior, I would be pleased to receive it in response to the several communications that have already been sent to you.
Tim Fraelich