I made a quilt for a lady, in Brooklyn NY, that lost her DH in the twin towers. She sent me all his clothing & photos & I made the whole quilt out of nothing but his clothing. It turned out great & she loved it.
I'd love to see a picture of this quilt, if you have one.
I think a couple of airplane blocks would be fine in her quilt, not the whole quilt though.
Don't know if it would be okay to use: Come Quilt with Me has a template for the Coffin Quilt (an old memorial pattern).
http://www.comequiltwithme.com