At my center we have a lot of shelves that aren't being used to their full potential (because of lack of space etc.) This would be a great way to incorporate some of those shelves and make the block area more exciting for children.
School science/garden idea: This frame made to look like a flower pot adds visual charm to growing lima beans with kids. Wet a paper towel and put it in a sealed bag with a few beans. Change the wet paper towel every few days.