Have you ever lost a button? One that is unique and cannot be found anywere? Do you want to sew something special and need very special buttons?

And do you own a 3D-Printer?

Then there is a solution to your problems - The Parametric-Button-Generator!

http://www.local-guru.net/blog/2011/02/20/parametric-button-generator

Download the openscad file and adjust the parameters to match your button

print it on your makerbot, reprap, ...