HOLY COW....I sooo need to post here. I have been crafty, I swear I have!!
Look see, here's some instructions on a thread and o-ring necklace:

Gather materials-
embroidery thread
scissors
glue pen
crochet hook
o-rings (these are actually knitting stitch markers)
large jump rings

Step 1- insert end of thread through o-ring

Step 2- begin wrapping thread around o-ring

Step 3- Use crochet hook to help pull thread through ring

Step 4- when about 1/4 of ring is wrapped, hold down thread and glue short end with glue pen

Step 5- continue wrapping

Step 6- when entire ring is wrapped, tie ends into a knot and glue. Then cut excess.

Repeat all steps for enough rings to achieve desired length. Attach all rings together with jump rings to form a necklace.
Unfortunately, I don't have a larger picture of the completed necklace (I was anxious to give them as gifts and got them wrapped before I could snap a pic.)
I liked using a wide variety of colors with very few neutrals for a summery, young feel to them. But any variety of colors could be used.