At dinner a few nights ago...
Cookie: "Hey! This just appeared!" (pointing to the piece of cantaloupe in her fruit bowl)
Me: "That has been there the whole time..."
Cookie: "No, it wasn't! I didn't have any of that kind!"
Me: "Yeah, the Cantaloupe Fairy must have come to deliver that to you..." (eye roll)
Cookie: "Really, she did! It wasn't there before!"