www.cartoonbrew.com/disney/it-all-started-with-a-toy
I'm pretty undecided about the affair, but I sure hope Walt didn't rip off the makers of this toy. A lot of people in the replies seem to concerned with the name. Someone even says that the toy looks nothing like Mickey Mouse, but I disagree. One of the toy's most striking features is its pair of round (spherical, really) ears. Those type of ears are iconic for Disney's Mickey.
For some more information or further reading, I found this PDF document, which - unless I am mistaken - outlines the discussion concerning this matter in an American TV programme, apparently called 'History Detectives'. I read it very quickly (skimmed through it) and I have to admit I didn't take in much, but I urge you guys to check it out:
www.pbs.org/opb/historydetectives/pdf/302_mousetoy.pdf
I'd hate to start thinking of Mickey as a ripoff every time I see the 'Walt Disney Animation Studios' logo before animated Disney films. I've already become obsessed.