You could decorate a Halloween tree with these sugar skull Halloween ornaments by Christopher Radko. I'd love to see an El Dia de los Muertos themed tree for Halloween.
Can you find other ways to use these? You could hang them on a string like a garland, but I would want to be careful that they couldn't get knocked down and break! These are really pretty and could be used for the holiday itself. Get creative! What would you do with them?