Nice idea!
I've done a lot of borders with angular designs, but this is a great way to make them more organic. But did you squash that first spirogram? If that's the original (the first one), I'd love to have the variables, if you still have them (the numbers you put in the dialog). Most of the time, the spirograms are round, so when I come across one that's not, it makes it even more fun to play with.
(Yes this is the right place to post a tutorial

)