Allah and Mohammed
As a newbie, I don't know all that has been posted and maybe someone has already suggested this, but why not have a blasphemy challenge for muslims.
According to the Koran, you will burn in hell if you reject allah and/or mohammed. This is even more important for women because if their husbands reject those guys, they will burn in hell no matter what they do or believe.
But remember, islam is a religion of peace and allah is kindness itself.