i too did the strap the hand warmer to the container....Got a plastic flask like container and straped the handwarmer to it. I used a small hair tie to do this.. Measured the temp w/ a digi thermo and it was 136 degrees...way to hot, so i insulated between the hand warmer and the container w/ some toilet paper and aluminum foil, made 4 layers and it brought it down to 100 which was acceptible...Stuck it down my pants for about and hour(took that long in the waiting room) no probs..worked great......I didnt use quickfix though got a friend who was clean to piss for me