I'm looking to do window art that is not permanent because it is at work. On our cubicles we have little windows that are about 10" L x 21.5" W, three in a row. I want to turn it into a somewhat transparent fish pond; water ripple effects, koi fish, etc. So we can still see through the windows but have a nice piece of art. I was thinking of getting transparent paper and drawing it on there and fixing it onto the windows. I'm just not sure which kind of paper would work best. Or if there is another way to achieve this look without actually painting on the windows. Any ideas or suggestions?