Check this out. Amboy Times published an extensive linked list of things that offend Muslims. See his list here. This is his preamble:
This list is a work in progress. I welcome suggestions. Anyone who has more items to add to the list, post them in the comments.
The intent of the list is to illustrate the futility of the multicultural approach to Islam. Sharia law demands submission not only from Muslims, but from non-Muslims as well. This makes respectful coexistence nearly impossible with Muslims in Infidel lands. The examples below serve as reminder that submitting to one complaint or another only emboldens Muslims to seek to further their ultimate goal of establishing sharia.
The West needs to come to grips with this fact and start standing up for our God-given rights of free speech, free expression and freedom of religion, lest we surrender those rights to a theocratic movement bent on removing our Constitutional freedoms that we hold dear. In this case, our tolerance will lead to intolerance.
Read the list: The List of Things That Offend Muslims.
Along the same lines, here are a couple of other lists:
95 things that fuel Muslim extremism
When is Islam Oppressed?