Note: This is an abbreviated version of all the discoveries leading up to this nail art technique. I will update this later when I have more time, but I wanted to show this now because I'm really happy about it.
Simply put, paint a square shape of polish on a plastic bag of sheet protector and let it dry. Gently pull off the nail polish square and put it in the slot of a stationery design paper punch of your choice. Use the little polish shape that pops out on your nail.
I included a picture of my mom's nails to show what the flowers look like.