Take your chances with any of the inexpensive USB microscopes. I remember being thrilled as an adult to pick up one of the old Intel QX3 microscopes for photographing small parts. Anything you get in that vein will be much better today.
~50 EUR, random no-name USB microscopes are surprisingly good these days. I use them for inspecting PCBs and SMT solder jobs.
Model names seem to change daily, but they are all very similar. Standard USB video device-class, so no software necessary. I just use guvcview under Linux.
Pick one that has "full HD" in the name - it's usually not true 1080p, but in my experience the picture quality is still better than the other ones that will have a PAL-like sensor in it.
Also, get one with a stand where you can adjust the height of the scope above the object with a screw.
