Cog Hoplite Shield

Ever encountered a unit of robot hoplites, but they don't have the round shields of a proper hoplite? I have! And it was driving me crazy-- especially when the idea of the cog's teeth interlocking to form a phalanx is RIGHT THERE. Completely amateur work, on a free software, but I'm pretty proud of how it turned out.If nothing else, hopefully if someone has the same idea I did they won't have to settle or figure out how to 3D model just to get what they want.Cheers! I will be printing this out