Magic Band purchases

Does anyone know where I can purchase a Magic Band with Ariel on it within the parks? The Shop Parks app does not have one, neither does the Disney Store. Any advice welcome, thank you!

I don’t know specifically about Ariel MBs, but Mouse about town in HS has MBs, Mouse gear in EP. Those two I remeber for sure. The best place to buy is next to Guest Services in DS, that way you can use them from the first day!

Do you need to purchase it in the park? They aren’t currently available through Disney, but you can get one here: