The BeePrincess Cooling Towels (10 Piece) are on sale for just $14 at Walmart (regularly $27). They have a 4.5 out of 5 star rating, and the 10-pack comes in a variety of colors.

The towel regulates the rate at which water can evaporate, causing a prolonged cooling effect. When activated, the towel's temperature will be about 30 degrees below your body temperature.