For all of my ornaments I set up a little drying station with the green foam blocks and skewers. While some were drying, I'd work on others.
I started by mixing a ton of glitter with mod podge. I wanted the glitter to be thick so I put a lot of glitter - fine and bigger glitter pieces. Then I taped washi around the ornament and painted a thick layer of glitter on one side of the tape. After a minute I removed the tape so it wouldn't be glued to the ornament and then put it on a skewer to dry. I touched up any bare spots after the mod podge had dried. Easy and shiny. Two of my favorite things.