Take one yard of thonging and a pair of scissors....

Fold thonging in half and tie a knot to make a loop about half an inch long.....

twist the two long tails together as shown until the twisted part is as long as your wrist measurement plus about half an inch.....

now tie a knot at the right length for your wrist....

now tie another knot on top of that one, to make it chunky....this is going to be the fastener.
Cut off the remaining lengths of thonging.........

Cut the bits you've just cut off into four pieces about 3" long

Tie firmly along length of bracelet

trim to size with scissors... try to cut ends at an angle to make them look sharp.

Push large double knot through loop to fasten.