Amazon.com: Cereal Killer Costume Funny Halloween Breakfast Cereal Food Pin by Samantha Sutherland on Halloween Cereal killer halloween Cereal Killer Costume Funny Cereal Killer Costume Cereal Killer Costume Cereal Killer Cereal Killers Costume. Cereal Killer Costume, Blue, with Tabard Cause a fright with the Cereal Killer Costume. This male comedy Halloween fancy dress costume includes a tabard with print design. Washing Instructions: Dry Clean Only Product Code: 38267 One sized product, measurements in line with men's medium