Image Source: Chelsea Cavanaugh / Martha Stewart Living
- Black craft paper
- Mummy tape or werewolf paw
- Chalk the details of a door on black craft paper and tape it to your real door's interior frame.
- Cut a hole in the middle that's just big enough to fit your arm (covered in mummy tape or a werewolf paw) through, and place candy below. It'll look like a mere prop — until it playfully slaps or grabs the fingers of anyone sneaking an extra treat.
Image Source: John Dolan / Martha Stewart Living