A flagpole ball ornament comprising opposed, hollow, hemispherical parts interfitted to each other at a circular rim formed on one of the parts and interconnected by an elongated diametral rod-like brace member. The brace member is internally threaded at opposite ends for receiving a machine screw to connect one of the hemispherical parts to the brace member and the opposite end of the brace member receives an all-thread member for connecting the ball to a support post member. The brace member may include, alternatively, a bolt clearance bore for receiving an elongated bolt for connection to the post member.