The Adult Bun in the Oven Costume is a real treat! This Halloween will be cookin’ with the Adult Bun in the Oven Costume. A great twist on the traditional phrase, you’ll give your sweetie a real fright when you tell them, “Honey, I have a bun in the oven!” Have some fun this Halloween with the Adult Bun in the Oven Costume. Fits most adults. This costume also works well as a couple costume with the Bun Maker Costume. Availability: This Adult Bun in the Oven Costume takes approximately 1 business day to leave the warehouse plus transit time.