The design consists of the features of shape, ornament, pattern and configuration of the entire ball display shown in the drawings. The drawings show six variants which do not differ substantially from each other. Figures 1 - 9 show the first variant, Figures 10 - 12 show the second variant with pegs, Figures 13 - 20 show the third variant with four nubs and eight holes on the bottom and top of the ball display respectively, Figures 21 - 22 show the fourth variant with a thin plate covering a small portion of the top part of the ball display, Figures 23 - 24 show the fifth variant with a thin plate covering a larger portion of the top part of the ball display, and Figures 25 - 26 show the sixth variant with a thin plate covering a larger portion of the top part of the ball display, the top part including eight holes.Figure 1 is a perspective view from the front of the ball display showing my new design;Figure 2 is a perspective view from the back of the ball display;Figure 3 is a first side view of the ball display;Figure 4 is a front view of the ball display;Figure 5 is a second side view of the ball display;Figure 6 is a back view of the ball display;Figure 7 is a top view of the ball display;Figure 8 is a bottom view of the ball display;Figure 9 is a front perspective view of the ball display, showing a ball in position therein;Figure 10 is a front view of the ball display;Figure 11 is a side view of the ball display;Figure 12 is a front view of the ball display, showing a ball positioned therein;Figure 13 is a perspective view from the front of the ball display;Figure 14 is a perspective view from the back of the ball display;Figure 15 is a first side view of the ball display;Figure 16 is a front view of the ball display;Figure 17 is a second side view of the ball display;Figure 18 is a back view of the ball display;Figure 19 is a top view of the ball display;Figure 20 is a bottom view of the ball display;Figure 21 is a perspective view from the front of the ball display;Figure 22 is a top view of the ball display;Figure 23 is a perspective view from the front of the ball display;Figure 24 is a top view of the ball display;Figure 25 is a perspective view from the front of the ball display; andFigure 26 is a top view of the ball display.