Just a warning, while the artist may sadly have passed his agent is still around and is not shy about threatening lawsuits, he threatened to sue one of my friends for just asking if she could post Rio's art in a Yahoo Group.
@darkwing42 That is some Disney level of IP/Trademark protection, though without context, it's very easy to demonize the agent. Not saying that the agent's response level was appropriate or justified, just that he was just doing his job, if to an extreme extent.