Sometime I lack ideas of what to rotate on Otis's art shelves - so I decided to make a list. I find there are lots of advantages of rotating art activities like this. We usually only have three trays out at a time. Although there are often pencils or crayons available in the study.
Having all the items that Otis needs within the tray makes it easier for him to use and pack up. With the exception of water for washing his paint brush (which he needs to ask me for) and his smock and place-mat which he can access himself. It's a real self contained way of presenting the materials.