I usually don't post tutorials, but this is such a simple necklace, I thought I'd share the few steps it takes to make it! Anyone can do it.:) I have made many fabric covered bead necklaces lately so my sister asked if I couldn't do ruffles instead of beads... why not? Here are are things you'll need:
Old t-shirt (any material would work)
scissors
needle and thread
That's all you need.
First cut a very long strip of fabric, mine was about 65" long.

Tie a knot about 12" from the end.

Grab your needle and thread, make a few stitches down the center and ruffle the fabric.

Keep repeating the knots and ruffles until you've got about 12" left on the other end.

There you have it!