The instant invention comprises a flat bottom surface, a flat posterior surface and two flat pentagonal lateral surfaces all jointed together to form one hollow unit and with a pair of parallel horizontal aperture slits of equal length through which banding is threaded, cut equidistantly from the respective bottom and leading edges of two flat pentagonal lateral surfaces and with a pair of parallel vertical aperture slits of equal length through which a second piece of banding is threaded, cut equidistantly from the respective top and posterior edges of two flat pentagonal lateral surfaces.