This appears to be from a few years ago, but it’s timeless.
From Costume-Works.com:
Mom notes:
Zachary, age 4, saw Mommy reading the news on the computer. He spotted a picture of the Pope and asked about him. Later, when Mommu was giving him ideas of what he could dress up as for Halloween, he didn’t hesitate. “The Pope!!!” We pieced everything together, made his costume and bought the car on craigslist. It was brown, so we had to completely change it. Instead of Pimp My Ride….we did Pope My Ride…
And today we celebrate...