After putting it through the ringer, here is my personal suggestion for a Shellac shaker to save your poor arms and hands! It is called a Robart Hobby Paint Shaker, just Google it and you can find them all over the place. The one I use plugs into the wall as I did not want the expense of replacing batteries. The reviews I read from those who use it for hobby painting mention not to use it too much right in a row, I did shake 12 colors at once then give it a break and it seemed to hold up doing it that way. Hope this helps!!