DIY Neck Chiller .. easy to sew and inexpensive.
DIY Neck Coolers | Sarah Jane's Craft Blog I found the crystals mentioned here at Home Depot for about $9.
neck coolers for soldiers tutorial
how to make a neck cooler OR use in the bottom of coco hanging planters. Keeps the water in to nourish plant instead of running out immediately upon watering.
DIY neck cooler- step by step directions More
Sarah Jane's Craft Blog: Neck Coolers Amazing!!! I'm making some for the kids working in the summer HOT months!!!
...helpful tutorial for making "cool-ties" (aka "cooling scarves"). @Operation Gratitude sends these to deployed troops in the spring and summer months.
how to make your own neck coolers
Tutorial: DIY neck cooler
Neck Cooler Wrap Diagram by The Small Object, via Flickr