This is something older children and teenagers can do to help. Set them up with yarn that matches most of the squares, or black is a good color to join them. Print out this page so they can learn how to whip stitch the squares together. Younger children in the family can set out the squares into the pattern you want to use for the finished blanket. Most shelters also need crib sized blankets approx.
All sizes are approximate because there is no perfect size.
Blankets just need to be warm and washable.