3-Ring Covering[Note: this webpage uses Java applets to illustrate the three dimensional nature of the figures discussed. If you don't see colorful objects that are mouse-draggable, then your web browser is not java enabled, and you are missing out... If you do have trouble viewing the applets, I would recommend you upgrade your web browser to the latest Firefox offered at Mozilla.org]
Here is a covering of the "3 Ring" figure from Article 6. I discovered this on 20 January 2005, a couple of days after posing the problem.