I've been searching an awful lot on the internet today and yesterday and I can't seem to find a good sign for Muslim or Islam. The most interesting one I found was in Dutch Sign Language:
Currently, I'm leaning toward that sign, or the 2nd sign in my video blog (if you haven't checked it out, please do so).
Please send me a vlog, let me know what your sign is for Muslim or Islam! I'd really like to identify myself without my sign being two m+bomb :(