I belong to a group that makes quilts for Lutheran World Relief and boy, are some of our quilts UgLy! They're made from whatever anybody has ever given to the group in the way of textiles. Use your imagination and you won't be far off.
At one point, I wrote to LWR to ask them what their guidelines for quilts were and I will share with you the lovely response I received from them:
"As far as looks, we believe that every quilt is beautiful in its own way because of what it does for another person. It's our/your way of wrapping God's loving arms around someone in need and what's more beautiful than that?"