Nail String Art

I am looking into getting the necessary materials (woodboards, nails, felt, thread) to attempt this classic geometric art activity:

 

Check out these links for a variety of pattern ideas you may want to try out: 

 

http://www.stringartfun.com/section.php/2/1/free-patterns/1709bdb5139a3faca594eb0902d41f52

 

http://www.e-scoutcraft.com/string/flower.html

 

http://www.caron-net.com/kidfiles/kidsjuly.html

 

http://www.mathcats.com/crafts/stringart.html#patterns