If you don’t mind holding as still as possible for 30 minutes and paying anywhere from $445 to $2295 (depending on the size of the finished product), you can have your own action figure (or wedding cake topper, or cat toy, etc.)!
Here’s a great video showing the mirror and shutter mechanism in a Canon DSLR. The action begins 60 seconds in.
Keep in mind that the entire real-time duration of the mirror swinging up, the shutter coming down, the exposure, the shutter coming back up and the mirror swinging down is .213 seconds.
Great find, Tom!