Celebrate Halloween by a cheerful tweet!
Every year on October 31 at 12am, IFTTT will send a cheerful tweet: "Boo! Happy Halloween! https://flic.kr/p/5y9Prj", including a link onto a Halloween image, taken by Kevin Dooley, that is licensed as Attribution 2.0 Generic, allowing for commercial and private usage of the following image (aka, this recipe is legal and cheerful!).