Ten Second Tip: Trick or Treat Bag – Magic Kingdom By Paula BrownAugust 18, 2018June 3, 2019Magic Kingdom, Ten Second Tips The free trick or treat bags are small If you’re attending Mickey’s Not-So-Scary Halloween Party, you might want to bring your own trick or treat bag. They do have free bags available, but they’re small. You will end up with a lot of candy.