Great haul! For the light up product you bought Jenn Cascell here on YTube actually just shared a paper craft project using that sort of thing and goes a little more in-depth on how to use with a 3d paper project!
Yea that’s the thing about Temu since they take the ideas from other companies they don’t really even know how they work. Search the Lawn Fawn magic iris die. That will show you how to use the camera shutter die you were talking about. I’m sure the other interactive dies will have a tutorial from the original companies somewhere!!