M.A.S.K. cels do exist. The cels where sent back to DIC after the show was completed. I was told by the person in charge of cels at DIC that most of the cels were destroyed after DIC was purchased by Disney. My cels were bought directly from DIC while I worked there, they did could not sell them to the general public, because of licensing issues with kenner. 

Speaking of DIC cartoons, has anyone seen any Starcom cels? I have two in my collection, just wondering if anyone else has seen any?

Also, has anyone seen any Pole Position cels? This was one of my favorite shows as a kid, and I have yet to find production cels, I have a promo cel, but no production cels.