Remove the top from your ornament. Pour Mod Podge Ultra inside and swirl around to cover the entire inside. Put any excess back in the bottle. I love this adhesive for making these ornaments but you can try other types as well.
Add in an entire vial of glitter. This will take just about the entire small vial from the dollar store. Shake and move it around until the entire inside is covered. Dump out any excess glitter. Allow this to dry overnight with the top off.
Add the top back to the ornament and twine for hanging. Use hot glue to secure pine cones at the top if you would like. Then your cute ornaments are ready for your tree!