What you need:
Wooden balls of different sizes
Choice of paint
Twine or ribbon
I put in my hooks before I painted. This way I could grip my ornaments without having to risk ruining my paint. I noticed that the type of wood used for the ornaments made a difference in how easy it was to screw in the eye hooks, but they all only took a couple of minutes and I was able to do it all by hand without need any extra tools.
Next, tape off the sections you would like to paint. I didn't worry too much about a perfect line, but I did make sure that there weren't any bubbles so that the line would be very clean. I let dry and then added extra designs using a gold sharpie.
The design possibilities are endless.