I call them sodas. You might call them pops. It's regional, at least in the U.S.
So, here's a digital model of a 12 oz. can (355ml for you metric types) of JBR Cola next to the Heavy Grav Tank.
Hull length is shaping up to be around 6.5 inches. About 165mm. Big!
Just some comparison shots.
Still waiting for CNC machine parts, like a dog waiting at the window for the mailman. ;)