Looks like Snafu himself was owned by Army, as he appeared in a few films made my MGM, Disney, and UPA. However nowadays he is public domain, which is why you can find the shorts online very easily. There is a Snafu cartoon made for the public in the 50s with the fairy. They're not called by their names probably due to copyright, but it was for either retired or soon-to-be retired men to consider reenlisting.