Certificate Borders

[samrc]

Looking at all these designs brings back memories of making these types of designs as a child, using Super Spirograph! Used a pen put into a tiny hole in a gear and rotated around a laid out track surface. Each roatation laid down another line. Could make wacky shapes and even the most complicated certificate edges imaginable. Beautiful designs and so much fun.
Can see the set I used to have here: samisite.com/external/spirograph2.jpg