Once you signed into the app via your Facebook account, you can start creating a theme. There are 23 themes to choose from:Zombies, Halloween, Superheroes, Gangster, Historical, Christmas, Uniform, 50s, 60s, 70s, 80s, Celebrity, Hen/Stag, Pirate, Western, TV & Film, Animals, Hawaiian, Funny, Fairy Tales, Religious, Burlesque and Around the World.
Once you select your theme, you can set your date, time, location and description of your party.
Next start inviting your guests! Once your guest accepts your invite, they are able to select their outfit without getting the same as you. It is great as no one will turn up in the same costume. When you click the costume, it will bring you to the item with a list of accessories. Now you won't need to shop around and look for all the items as you just get it all in one shop. So does your guests.
Disclosure: This is a PR collaboration post. Images from Fancy Dress Ball.