Larks Head Knot
Fold strand in half. Using a crochet hook, pull fold through edge, then pull ends of strands through fold to secure.
Lark's Head Knot
Lark's head knots are great for securing stringing material to another piece, such as a ring or a donut: Fold the stringing material in half. Pass the fold through a ring or donut, then pull the ends through the loop created and pull snug.