I succumbed and bought a £26 version - I'm struggling to get the software to behave at the moment, but this is an indication of what it'll do.
The subject is the bottom of an enormous old earthenware jar that used to belong to my late mother in law. I found all sorts of things that I suspect that my niece and nephew must have dropped in there when they were younger - I think that this is sewing threads (I also spotted a small fridge magnet and a pink smartie!). Apart from taping the camera to the end of a rod, I did nothing faintly clever with it.
G