Here is the test neck tie cooler that I made. Really easy, just make a tube of the width of the fabric, sew a seam through the centre, fill each side with a teeny amount of gardening water crystal stuff (like 1/8 of a teaspoon), sew two more seams 12cm along and then repeat so that you have a total of 4 pockets. Fold in the edges and voila. I made these tees the other day for Jalisa, when Scott was having a good sleeping day. Usually he naps for 40 minutes, three times a day and by the time I get the washing/dishes/tidying/other chores done and played with Jalisa, there is not much time left over to sew (hence why I usually sew when he is awake and happy to play on the floor) .