Earlier today Tobias at Surfaced Studio released a video showing how to put faces on vegetables using After Effects.
As usual, I wanted to see how to do it in Hitfilm Express, as most things are possible, and here is the resulting Project file to download. Just avoid any of the offers or other nonsense on the link page and download the file. Put in the same folder as the video clips. You may need to relink the clips to wherever they are on your computer.
https://www.mediafire.com/file/5h6u64eoljvrn6j/Pickle Rick Express.hfp
It contains a single composite shot of 6 layers using two point tracking and the clone stamp tool. No mocha or clean plate required.
You'll need to download Tobias' project files separately from the link below his video. You can then apply a similar technique to your own shots.
I won't be making a tutorial for this, just pick apart the project if you're curious. Nothing stopping anyone else making their own using similar techniques (and their own clips) though.