Jan, those are perfect! I gave my twin brother his this weekend and he loved it..Im pretty sure my ex brother in law will love the one I make out of these blocks! My brother and BIL both did 25+ years in the Navy, both on aircraft carriers. They have been to about every country and lived on both coasts. Im proud of both of them!Thank you so much! GOOD LUCK to your son. I know its hard to have them gone but its a good career choice now days!