However, I failed to take a "before" picture prior to smooching my vegetable friend, so it was hard to tell just how efficacious our little encounter really was. I decided to remedy this today.
So, a definite effect, but not a dramatic one. More of a subtle "What? I always look this good..." look then a dramatic "out on the town or off to a business meeting, I haven't decided yet" look.
A commenter on the "MacGyver Your Makeup" post on ReadyMade suggests mixing beet powder (which apparently people take as a supplement?) with vegetable glycerin to create an actual lipstain, so I'll need to try that soon too.