Another possibility: provide every girl and woman of marriageable age in the muslim world with a 9mm semiauto pistol and 100 rounds of 9mm ammunition. Total cost would be around 70B USD and it would probably eliminate Islam from the planet.
Baaaad idea - just remember that Muslim mothers hold their own daughters down while their clitoris and vaginal lips are cut away with a razor blade. They are MUSLIMS!
Bomb the Kaaba, sure. But do a Carthage on all of Islam and every Muslim.