Quicksand Fans

So I had a little bit of an idea. I’ve been hearing a lot of these face swap apps and I was wondering if anyone could suggest one that allows you to upload your own video. To kind of give some of my quicksand videos a little bit of a new twist I was seeing if I could find an app that would allow me to swap the faces of celebrities with the videos I have of men sinking. I checked out the app reface, you have to use their videos exclusively, and they only find gifs of the blue Peter quicksand scene and only one of the two worked convincingly. If anybody knows of an app that works please let me know.