- This is an easy and accessible sticker book filled with opportunities to dress the children in their fancy-dress costumes. Using over 130 big stickers of clothes and accessories, children can dress the boy and girl characters for various party themes. Costumes include mermaids, pirates, princesses, knights, firefighters, astronauts, cowgirls, superheroes, ballerinas, robots and fairies, though children are allowed to let their imaginations run wild and mix and match as they please.