Madison Beer attended a David Dobrik’s Halloween Party wearing Are You Am I Sunniva Corset ($295.00), Multi Ruffle Boyshort ($12.97) and Cinnamoroll Plush Backpack ($28.69) both from Amazon, Cinnamoroll Plush Convertible Gloves ($18.90) and Cinnamoroll Plush Headband ($14.90 – similar style) both from Hot Topic.