Keep packed foods hot or cold with the funky Kikkerland Mushroom Hot/Cold Pack. This amusable accessory is great for school and office lunches. Place it in the freezer to chill, or heat it in hot water to make it warm. It's reusable and made up of non-toxic gel and vinyl. Fill out a gift basket or present it to a friend or loved one as just a little something to let them know you were thinking about them.