Remove the top of the ornament (where the hook attaches).
Clean the inside of the ornament with a small amount of white vinegar. Allow ornament to dry completely.
Pour a small amount of Glitter-It! into the ornament and swirl around to completely coat the ornament. It is much more water-like than typical glue, so don't be surprised by the consistency.
As you swirl the adhesive towards the top of the ornament, drain it back into the bottle and drain for up to 20 seconds.
Sprinkle a small amount of glitter into the ornament and swirl around (or shake lightly if necessary) to cover the whole ornament in glitter.
Shake out excess glitter (you can put it back into the original container) and let ornament dry.
Replace the top of the ornament and hang on your tree!