Old Sarge, the Navy Puffball Turtle! I chose Old Sarge for his name, because Navy blue reminds me of the Military, which reminds me of my grandfather who at the war of Iwo Jima was called by his men, "Old Sarge", because he, at the age of 26, I believe, was the eldest among them..(at least at the level of Sergeant)....(yes, my grandfather did fight at the war of Iwo Jima.)