Do you have an AC Moore near you? Starting on Sunday, 3/4, they have scrapbook project storage boxes on sale at 3 for $10.
They are regularly $9.99 each. I have several stacked on the top of the large bookcase in my studio. The boxes are pretty and are perfect for storing blocks. They have a lot of different prints and solid colors. I bet you could find some that would look great in your sewing studio, too!