Xenomorph doggo, Alien 3
"David Fincher‘s feature film directorial debut swung for the fences in many ways, and some of those things worked….and some, well, didn’t. One of the more out-of-the-box ideas that Fincher and his team came up with when making Alien 3 some 25 years ago was to use an actual dog, in this case a Whippet, and dress it up in a specially made latex suit to become the animal based version of the deadly xenomorph.
This version of the xenomorph ultimately didn’t get used, and a pretty sophisticated puppet (and later, CGI in the extended version) was used instead."
ALIEN 3 Dressing the Whippet ADI BTS
https://www.youtube.com/watch?v=xUMX6hsvbO4
