From a children's toy to a useful construction aid

Our daughter and her two children have long since outgrown Lego. While clearing out some clutter, I once again came across the really large Lego bricks. They had actually already ended up in the disposal box when it occurred to me that these bricks—being clean and angular on all sides—could actually be useful as building aids. No sooner said than done—I gave it a try. When gluing spans and, above all, ribs, the bricks are truly an excellent aid for aligning the parts. The pictures show how it’s done. They also have the added advantage that when you place them with the studs facing down against the part, a fairly large air gap is created, and they don’t get stuck to the part.