I'm a member of a yahoo group called Sunshine Quilter's Online Guild and we quilt for two children's groups. One sends quilts along with the medical teams that repair children's cleft palates (like Smile Train) and the other send quilts to children in orphanages and missions worldwide (including the USA). See more on these two groups at:
http://www.rotaplast.org/partners/wrapasmile.php
and
http://www.wraptheminlove.org/
You can also google Sunshine Quilter's Online Guild to get to that site. The quilts are smaller since they are child-size and work up quickly. It's very gratifying and I hope you find a donation group that you love. Bless your heart for thinking of others in your retirement.