I need to make a 3d football cake. The base of the cake will be a 9x13 football field. The in the middle I need to build a football tee and have a 3D football cake standing in the tee like it is ready to be kicked. I purchased a flange, pvc and dowel rod. But because the football will have to beat an angle I am not sure how to build the structure. Any help would be appreciated.