I totally made cupcakes for Halloween and promptly forgot about them. I didn't put a whole lot of work into them, but they went over well.
I went with the white velvet cake recipe from the Cake Bible, but I subbed orange flavor in for the vanilla. Then I dyed the batter yellow and orange and layered them. The swiss meringue frosting on top stayed white but got the orange too. Then I put them all together and stuck a candy corn on top so that people would "get" the theme.
Of course the best part of the day was by dear doggie all dressed up to hand out candy to the neighborhood kids. You can tell she's excited since the tail wagging just blurs. And for the record, totally buy KitKats, the kiddos went NUTS for them!