Looking for wooden balls for my septum

I really like the look of the sterling silver horseshoe with wood ball ends. Anyone know of a good online retailer that would have decent options on something like this? Even if I could buy just the balls themselves that would be fine but I need a 7/16 barbell. tia.

I really like the look of the sterling silver horseshoe with wood ball ends. Anyone know of a good online retailer that would have decent options on something like this? Even if I could buy just the balls themselves that would be fine but I need a 7/16 barbell. tia.