Above left: First mock up of the thrones for scale and silhouette. Middle: Steel structures together. Right: Final prop with troughs for flags. Seven in total were built out of 11 gauge 1"x2" steel tube. Each prop measured 5' to the base (where I am standing on the left) each base was 6' square, and the backs were 7' tall giving the overall prop a total height of over 13' with the crowns and wheel clearance.