Not exactly a product to “fancy up” your snatch but somewhat related - a few years ago some quack chiropractor tried to market a glue that would hold your labia closed to catch your period without the need for pads or tampons. It went over as well as you would expect.
According to their website at the time, ‘Mensez’ is a lipstick that, when applied to the labia minora, creates a temporary seal to retain menstrual fluids inside until urination. The urine instantly releases the seal and everything washes away into the toilet.
Shockingly, women didn’t immediately start throwing their money at this and the product didn’t take off. The website is still up, though they seem to have rebranded as a company that will produce wet wipes for periods instead.