I did see that Ken, and that's exactly what I went into the shop to make. As I was about to cut center of the second jar cap, I paused and wondered why I need two jars. Being in a rush, I decided I could replace the attached jar with a bowl and just use a solid and screened cap. Since it worked well, this is now my method of choice.Here is Randy Oliver's mite shaker. Uses a peanut butter jar like yours Wayne.