If you don’t want to make your own DIY smartphone microscope, there are several inexpensive smartphone microscope attachments and related products available for purchase.
Neewer 60x and 60x-100x Magnifiers
Click here to read our full Comparison of the Neewer 60x Magnifier (Silver) and the Neewer 60x-100x Microscope Lens (Black).
Glass Microscope Slides
Speaking of slides, you’re probably going to want some. Glass microscope slides are cheap. I got these from Amazon for $5.50 with free Prime delivery.
If you want to be fancy, you could get a box like this to keep your slides in. Dexter, the fictional TV serial killer, kept blood slides from his victims in a box like this. It’s $7.28 with free Amazon Prime shipping.