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20 days agoNone at all. They originally filmed the scene with an actor in a big fur coat, but they cut it out because it’s kind of redundant - we don’t learn anything about Han that the earlier scene with Greedo doesn’t teach us in a more interesting way. Then they decided that Jabba would be a giant slug man some time in between 1977 and 1983.
The way it’s depicted in cartoons is not a thing, but Ventriloquism is definitely a thing. Turns out it’s mostly about making people look somewhere else while you talk (such as at your puppet) which creates an auditory illusion.