If she wanted to wear something intricate, Harvey would have to make it herself. Half of the attendees at the event are expected to wear cosplay or special apparel to celebrate the characters they know and love. If you’re looking for a head-to-toe, complete Halloween costume, we’ve got a ton of iconic characters to choose from including Harley Quinn, Poison Ivy, Wonder Woman, and even Alice and Dorothy. Harvey’s cosplays got more elaborate as she got older and required her to do much of the artisan work by hand, mortal kombat costumes she said.