In red:

1. Magic ring 6
2. Inc around (12)
3. (SC, inc) repeat around (18)
4. (SC, sc, inc) repeat around (24)
5. (SC, sc, sc, inc) repeat around (30)
6. ( sc, sc, sc, sc, inc) repeat around (36)
7. (SC, sc, sc, sc, sc, inc) repeat around (42)
8. (SC, sc, sc, sc, sc, sc, inc) repeat around (48) In black
9. SC around
10. Ss and weave in end

In white
Copy row 1-9 of red

1. SC around
2. Ss and leave a long tail to sew sides together

Stuff and sew top and bottom with black tail

Button:
In white

1. Magic ring 6
2. BLO sc around (6)
3. Inc around (12) In black
4. SC around
5. Ss and leave tail to attach

Attach button to ball