Many of these organizations have strict guidelines as to what they will and won't accept for distribution. My Mom donated her time to the Mennonite Central Committee. I remember her telling me that they had to reject certain fabrics and even certain types of print/design because it was deemed unacceptable in the country it would be going to.
I would contact the organizations--go to the horses's mouth so to speak--and ask. It would be sad to put in the cost, work and time, only to find that the the quilts would be rejected.