define legal.
you would have to get their written permission if you want it to be legal, so they don't send the hounds. lots of people do lots of things, doesn't make them right. i would contact a copyright lawyer about it, because we aren't lawyers, and the net people aren't either (they might but you know). best to stay away from disney is my advice. they have lawyers you couldn't afford. better to make your own cartoons. they may license it out to you, but i'm willing to bet the price is outside of normal things.
---Mike Savad
MikeSavad.com