This black cording is great for making adjustable necklaces. A one yard piece will make an 18" necklace which can be shortened and lengethened to adjust where your pendant will be placed.  This is a great way to wear your crystal near a particular chakra.
 
$1.00 per yard.
 
Cording can be ordered in any length.  I will teach you how to make the necklace adjustable.