I would be very excited to try a cupcake version of a Midori sour. Lemon cupcakes are already popular, so it shouldn't be too much of a stretch, right? Midori sour isn't a very appealing name for a cupcake though... I definitely recommend something lemony, though, maybe with, like rock candy as an accent (like how they put sugar on the rim of your drink). There was a fancy kind of course sugar for that but I can't think of the name...