Originally Posted by Val_1

General prankery? Ok.

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My guess is that this will be about as good as you will find. Most movies that need realistic costumes don't buy them off the shelf, they make them. Which could be fun, but would probably take awhile. But, with the right quadripedal posture, it might work. You would want extend the arms a bit to make it more realistic. Perhaps with some modified arm braces.