String and washer puzzle

I was shown this neat puzzle by a friend who made one. He dropped it off to me one night and it drove me crazy trying to figure it out. Well with the internet I was finally able to see how this puzzle was solved with the video below. So I had to make one.

I have created this design small enough to fit on a desk.

Prints nice on a 6x6 bed

Makes a great gift.
Here is the video that solved this puzzle for me.
youtube.com/watch?v=RkGI9rHIGZk