I'm going to make my son take suppositories for profit off of the videos
Why on earth would you do that and how is there a way to profit?
I'm going to make a video called "how to use suppositories" and put in on the internet.
You should not be using your child for demonstration on a video like that.  It could be considered abuse.
This is just a prank. How can it be abuse if no one gets hurt?
Your son could be hurt, there are a lot of disturbed people on the internet who use the video for inappropriate things, Have you considered just using an infographic if you want to make this video?