1. Buy really cheap plastic ornaments (glass will inevitably fall & get batted around by cats in my case) These were 50% off at Rite Aid, but Ikea is even cheaper. I was just too lazy to make the drive Don't forget to pop off the tops.
2. A can of black lacquer spraypaint
3. A cardboard box
4. Learned on the job: An egg carton holds them in place