Home Made Gel Ice Packs - This is awesome! My back got sunburned so I got one of those huge ziploc bags they have for storing toys and made a huge version of this and laid on top of it. Water, Rubbing Alcohol, and food coloring
How To Make Your Own Shapeable Ice Pack For Pennies
When camping, tailgating or going on a picnic, keeping food and drinks chilled is top priority. Instead of using ice, which melts and creates a slushy mess, make your own ice packs using PVC pipe. This is a more efficient method for transport and cleanup.
DIY Gel Ice Pack ~ (Need to try this soon) Liquid Dish Detergent + Ziploc Freezer Bag (double bag as extra insurance against leaks) ~ Squirt liquid dish detergent in a ziploc bag until the bag is to full, seal and freeze. re-freeze-able.
Soothe Aches And Pains With This Homemade Heating Pad