Cosplay guides are resources that break down the appearance of a character to help people wanting to replicate the costume. I would create a guide for Marauder, as she is the protagonist. The post would include a hashtag to encourage cosplayers to share their photos in the outfit on social medial. This would be an effective post for a number of reasons:

1. it would generate interest amongst my cosplay following
2. people cosplaying Marauder would act as a promotion for the book