Something a little different. I took Stu's question about turning the buttons as a suggestions. After a couple of tries, I was able to drill a hole through the center of the violet rod and super glue a red rod through the center. The drilling fractured the violet plastic so it looks a little like an iris with a red pupil. The left photo was taken in ambient light and the right was taken in the dark.



I still like the solid buttons better but these are fun. I've got a piece of green here also that I'll give a try when I get time.