Originally Posted by MrsSteinel'sHouse:
We have a tradition of painting the inside of the clear glass ornaments. Started when they were little because they could shake them and it was a "nice" gift. My kids make other crafty stuff but the glass ornaments stay on their trees forever whereas some of the other items do not have the durability
We did that plus I also had clear ones that open up and had the kids smear glue all over it and then added glitter to it. Turned out great