crypha

Hi There, I'm looking to make a couple of leather pencil cases like this one: http://img0.etsystatic.com/000/1/5272125/il_fullxfull.337681960.jpg I was just wondering if someone could point me in the right direction for achieving those ends. I've had a few tries but can't really get the same shape. Does anyone know if the ends have a particulare name? Any help would be great! Regards, Crypha