I went a step further today and took some snips and needle nosed pliers and reduced the bobby pin to a smaller version of itself, with a perfect curve for the lens. It is now small enough to pop into my phone cover camera slot, and I can reverse it to take regular pictures and it’s pretty snug. This mod is super easy, convenient if you have a small lens you can salvage, cheap if you don’t, and a cool way to reduce your carbon footprint by recycling junk and not buying a new prepackaged USB microscope.
I’m looking into further lens mods that can stack with this to enhance our field of focus and magnification.
Keep on trucking.