Not only is potato perfume now a thing thanks to the Idaho Potato Commission, it's incredibly popular. They've already sold out of all of it, and in order to get your hands on it (or it on your hands? It's a weird place to put perfume, but the wordplay stands) you'd have to win it in a contest on their instagram.
And it would be worth is so you could present that bottle to your significant other on Valentine's Day and say, "I'm ready to starch my life with you."
or, "you're the root of my love."
or, "we should discuss the prospect of getting your tubers tied."