‘Sphere’ is an applet I found on Jaap’s Puzzle Page some years ago… https://www.jaapsch.net/puzzles/sphere.htm
I used it to create fictitious petanque boules (although one or two I recognise) with mostly ‘over the top’ designs. Striations help players tell their boules apart. I played the game for about 15 years.
I used a couple of filters in Paintshop Pro 7 to vary the colour and to create some depth.