I have wanted to get a microscope for photography for ages but found them too expensive for the resolution I want. I remember looking at onion skins under a microscope at school and they looked like silk made of gold! Perhaps you should try looking at some onion skins? I also think leaves, bugs, feathers and petals would look cool in particular a leaf that has dried up and gone skeletal. I am really excited to see what they might look like and hope you try out some of my suggestions and post them soon! ^^