I'm open to trading for costumes on my wishlist for similar value.

Book of Christmas Presents: 3,500,000mp
Book of Fungi: 10,000,000mp
Book of Halloween Candy: 5,000,000mp
Book of Midnight Horrors: 5,000,000mp
Book of Punk Rock History: 6,000,000mp
Book of Roses: 2,500,000mp
Easter Egg Guide: 7,000,000mp
Ladybird Book: 2,500,000mp
Royal Family Book: 2,500,000mp