You know, I really, really like this idea. I wish I could send it somewhere! Hmmm... wonder if there are any "underground" women's health initiatives left. I may really have to follow up on this.
Because women are going to love this idea. Men, maybe, not so much, I don't know.
Julia
I am supposing this would not be so very difficult to even require a "kit". After all, Police can take DNA off of all sorts of things left behind... so a simple q-tip swab put into a plastic bag and marked as to date and origin would likely serve your purpose.