Congratulations to your both! My son also is an Eagle and I know the amount of encouragement it takes during that last year for a scout to reach the rank of Eagle. What a goal! My son is now in his mid thirties but still is proud of his achievement. He just stands a little taller and is a little more confident when ever the topic of this level of achievement comes up.
One of my most special moments in life was when he pinned the Mother pin on to my jacket during his ceremony. Have your tissues at hand. You will need them.
The quilt is a marvelous idea. I hope we all get to see it when you finish. I have purchased some scouting fabric to add to a promised quilt for my son that will highlight his interests over time. This quilt is on my "someday soon" list. Congratulations again.