The folding methodology for this brooch can be easily applied to similar brooches from regular polygons with more than five sides.
The maneuvers described in steps 18-22 were originally suggested by Jane Rosemarin in the context of A New Brooch (Number 5) From a Regular Pentagon.
PDFs of Previously Published Brooches
Click on the links to download diagrams.
An Equilateral Triangle From a Square.
Brooch 1 From an Equilateral Triangle.
Brooch 2 From an Equilateral Triangle.
Brooches 3-7 From Equilateral Triangles.
Brooch 1 From a Square.
Brooch 2 From a Square.
A Regular Pentagon From a Square.
Brooch 1 From a Regular Pentagon.
Brooch 2 From a Regular Pentagon.
Brooches 3 and 4 From Regular Pentagons.
A New Brooch (Number 5) From a Regular Pentagon.
Brooch 6 From a Regular Pentagon.
A Regular Hexagon From a Square.
Floral Brooch From a Regular Hexagon.
Brooch 1 From a Regular Hexagon.
Brooches 2 and 3 From Regular Hexagons.
A One-Cut Heptagon From a Square.
Seven-Pointed Star Brooch 1.
Seven Pointed Star Brooches 2 and 3.
A Regular Octagon From a Square.
Brooch 1 From a Regular Octagon.
Brooch 2 From a Regular Octagon.