Well Alexa if you ever do design some abayas then let me know and I'll be happy to buy them. It definately does make good business sense to start with something safe until you get to know the abaya trade a bit better though.  

I especially love coloured abayas myself. But the majority of "religious" muslims in the uk also prefer black, navy or grey.  I have just started a new trend in my community by wearing tie dyed abayas in pink and blue (quoting my evidence with it).  And to be honest it has been a smashing hit with the locals as well. They all tell me they prefer my abaya and khimar as it makes me seem more approachable then the blackies.