Does a big mess keep you from doing art projects? Here is an idea I came up with recently as I am beginning to implement the "Workbox System" into my home.
You can make up a workbox (plastic tote) for a particular kind of craft or art method.
Like watercolor painting, coloring in colorbooks, stencils, scrapbooking, lapbooking, etc.
One craft per workbox.
If you do this then all the supplies needed for that activity are there. Make sure the scissors, glue sticks, colored pencils or whatever are all in there- whatever is required to that art activity! The child just goes to retrieve the workbox and will not need to search for this and that! The bonus is that it makes it really easy to clean up and put away too!