Still "studying" A Beginner's Guide to Constructing the Universe by Michael S. Schneider.  And it touched on Borromean rings in chapter 3.  No two rings interlock, but the 3 together lock as one. Now that seemed like a cool string...
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| PP3 Borromean Rings on a 3Z :-) | 
 
This 3Z combines the Zentangle Project Pack 3 and the rings.  Yup, the whole project on one small tile.  The color is from gelatos and colored pencil.  That background leaf in the photo is from a fun day with Washington CZTs learning about Eco dyeing.  Thanks Lynn, that was a fun afternoon!
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| Zenith Borromean Rings on 3Z | 
 
Another set of rings on another 3Z.  Yah, it's a bit busy so you might not recognize it if I hadn't told you there were Borromean rings in there.  
And then trying to break it down and actually assemble a set, I die cut 3 circular frames using nesting dies (but you could also draw them with a compass, or simply trace around a couple glasses).  
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| E6 Fragment in a Zendala Ring. | 
 
This first is simply a fragment, E6.  
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| Zenith Zendala Ring | 
 
Yes, another Zenith :-)
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| Zenith/Diva Dance Zendala Ring | 
 
Surprise, Zenith with Diva Dance.  
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| Borromean Rings meet Zentangle. | 
 
And assembled after cutting slits in 2 of the rings.
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