I got bored.
That's what happens when I stumble upon factorisation diagrams (jasondavies.com/factorisation-diagrams), while wanting to try the javascript library D3.js.
If it works, you should see a series of flags similar to the one above. (javascript needs to be enabled in your browser).
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Based on jasondavies.com/factorisation-diagrams © Jason Davies 2012, and on fascinatedwithsoftware.com/…/And-Now-an-SVG-American-Flag-with-D3.aspx © Larry Spencer 2012.
If you look at this page's source code, please be kind. I did that in a hurry and I'm just starting to use D3.js :))