"I need the cinderella"

I had to make an emergency run to the grocery store last night and I took Madison with me while Steve sat home with Kellen. The weather was rather nasty with a rain/sleet mix coming down so we took an umbrella with us. But, to Madison, it sounds just like 'cinderella' so that's what she kept calling it. While we were standing in line to check out she kept telling me that she needed the 'cinderella'.