Got a guy bringing me an elk he took on a trip last week in Co. I am going to try adding a little h2o2 to my degreasing mix as I am working on it. Once I put the skull in my dawn/water mix and add the h202 to the mix, I know it will bleach the antlers. I am trying to avoid that as I don't like having to stain someone's trophy. Any suggestions on a way to prevent this from happening? Also, I found some nifty aquarium heaters that have no thermostat on them. I was told by the vendor that they will continue to heat as they have no way to stop. They are fully submersible. I think I am going to try and get one to test and wire in a water heater thermostat to control the temp.