If you've ever seen those cooling bandanas with the water retaining gel inside, then you know where I got the general idea from.
They work SO well, but I thought they could do with a bit of a fashion revamp. Something a little more feminine. So I had a play with some fabric, and this is what I came up with.
I figured since we are having a rare hot summer day here in Cambridgeshire, I would share it here, in case you're having good weather too, and need a project like this.

As you can see, it doesn't look like much when you first put it in to soak. (Excuse the chips - I don't think I own a bowl without a chip in it!)
But it soon swells up to full "beady glory"!
And if these beads are a little big, and you want one to double round....
You can find a tutorial here:
http://snottydog.wordpress.com/2012/08/28/make-your-own-funky-reusable-cooling-necklace/If you make one, do share a picture!

This work by Louise @ Snotty Dog is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.