You might make it if you make them like the Linus quilts I do. I make the front out of a continuious piece of cloth and the back out of flannel. I layer the top and back face to face and lay that on top of the batting. I then sew, actually serge, around three sides and then turn the whole thing like a pillowcase. I pin baste the whole sandwhich together and tuck in the open ends. I then machine quilt it in a big decorative stitch about 4 inches apart all over. You could use a patriotic print, a bright plaid or a sports type one for the front and plain solid color flannel on the backs. If the top fabric isn't wide enough just sew wide borders on it till it is big enough. If they are going to end up in a combat zone laundering will be a problem and the important thing is them knowing someone cares.
Perhaps someone on this board would be willing to collect and ship such quilts to the troops for us. I would be more than willing to donate a couple.