yes kittycat,
we sell them at petsmart where i work... theyre called blue coral platies, and are bred for thier silver blue colour, often with a mickey mouse marking at the base of the tail. (they are, however, not dyed, as some may assume...) if i can get ahold of a pic of one, i will try to post it. they are rather expensive, as far as platies go (about $10 CDN a fish) but are very cool. i have thought about saving up and getting some myself!
hope that helps! ttfn