I have seen the outside of ornament balls covered in glitter, but I decided to mix it up a bit and fill the inside!
I had a bottle of black glitter that was basically full, so I just poured it all in an ornament. Be careful though! It can get a little messy! I suggest using a little funnel, but if you don't have one you can easily make a paper funnel.
These would look great on a white tree with a black color scheme!
(I'm in love with some matte black ornaments I saw at Hobby Lobby!)