One of the most enjoyable parts of IYM experiences is to become someone new, a funny character, and of course: outfit, accessories, makeup and everything that will help to get into your role’s skin!
Here we have a bunch of ideas*:
COSPLAY FANTASY:

Fantasy and medieval: wizards, witches, legendary creatures, princesses, warriors…
COSPLAY SCI-FI:

Futuristic and bold costumes: galactic soldiers, evil forces, cyborgs, aliens, cyberpunk…
COSPLAY CLASSIC:

All time classics, victorian, pirates, western…
COSPLAY MODERN

Ultimate fashion tendencies, urban subcultures, eccentric personality types…
COSPLAY FOR GROUPS

What about performing like a well synchronized band?
Cosplaying and strong make up are highly advisable to make the most of the experience though copyrighted costumes won’t be possible to use*.
*It is IYM policy to not use copyrighted material without acquiring the appropriate license.