Original Rancor Costume from RETURN OF THE JEDI
The original concept for the Rancor creature in George Lucas' 1983 Star Wars film Return of the Jedi included a guy in a costume, just like Godzilla. They ended up scrapping the idea and used a miniature wireframed puppet. According to the guy who posted the photo on Reddit (Join_You_In_The_Sun), "Dennis Muren of ILM wanted to avoid a 'muppet look' and shot at high speeds and sometimes backwards." I'm glad they didn't go with the costume, because it just doesn't look as menacing.