Nursing necklaces

[AngelDog]

Where's the best place to buy cheap nursing necklaces?

And do you think it's safe to (co-)sleep in one?

15 m.o. DS has developed an irritating habit of trying to pull out my hair while he feeds to sleep. He's fine at other times, so I don't really care what the necklace looks like.

I have a lovely one from www.facebook.com/home.php#!/BoobyandtheBeads, £12. It has a magnetic clasp which comes undone when pulled, so it can't be used to strangle me. I have slept in it, but my babies only 6mo, don't know what mischief a 15mo might get up to with it!

I got a cheapish Lait D'Amour one from ebay. I doesn't have a clasp, but I think if it did ds would just pull it off all the time.

Thanks. :)