Here is my final design for the ball.


<svg
width="100%" height="100%" x="0" y="0">
<circle cx="100" cy="50" r="40" stroke="black"
stroke-width="2" fill="yellow"/>
<circle cx="100" cy="125" r="30" stroke="black"
stroke-width="2" fill="yellow"/>
<circle cx="100" cy="180" r="20" stroke="black"
stroke-width="2" fill="yellow"/>
<circle cx="100" cy="220" r="10" stroke="black"
stroke-width="2" fill="yellow"/>
</svg>