Do you know if they have a chemical heating pack that you can break inside the package and use to heat the synthetic urine. I know they have hand warmer packs like this. You break the pack and chemicals mix inside generating the heat. This would make it a lot easier to keep the Quick Fix handy without having to strap it to your leg or crotch for as long as a year. You can just break the chem pack and quickly heat the specimine.