Don't know if this one can really count, but it might be of interest.
I saw a girl of about 12 with a pink footed sleeper, which had a back flap. She also wore a bib and bonnet. She was trick or treating for Halloween!!! I was driving passed her and her group when I spotted her. As I passed, I glanced back to see the back of her sleeper was left purposely and slightly open to show off her diaper! Couldn't make out what type it was???
There was no chance she would have come to my door, as this was quite some blocks away from my house. :( But, she look cute in her baby custom, it was well done!
Makes me wonder if she really liked the outfit, and was happy to use Halloween as an excuse to wear it???