I have attempted doing macro photography where you reverse the lens. Reversing the lens let's you get a lot closer, but has it's issues as you don't get as much light in. As I do not own a clip for it I held it by hand, which meant I shook and got occasional light flares.
I find I get extremely close up, but at the moment I just use my phone as it gets close up and let's in a lot more light. Unfortunately, I do not get as close up as when using the hack of reversing the lens.
Taken with the camera lens flipped. This is a pepino flower about 2cm diameter.
A aphid taken with camera again.
Taken on Samsung A8 phone.
I have bought some lenses for my phone for this purpose and it allows me to get over twice as close. It also works if you have a magnifying glass to put in front of the phone camera. I got the lenses quite cheaply off the internet. It's quite a fun thing to experiment with!