If you want a fun and quick piece of art work, make a 4 tile ensemble. Put 4 tiles together. Draw your string over all of the tiles. Individually, tangle each one without looking at the others. When you are done, put them back together, frame them, and you have a little treasured piece of art!
(Note: When I photographed the individual tiles yesterday, there was too much sun coming in the windows, and the color is off. I didn't want to take the assembled pieces out of the frame to redo. The framed piece shows the original color better.) :)