Hey guys, I have a weekend warrior type project I thought some folks might be able OT help me out with specifically on degreasing. Now before I get yelled at, I know degreasing has been beat to death on hear but I have not found a thread yet that addresses my exact scenario. Background: I found a deer skull while out for a hike one day. Nice little six point; critters had nibbled a bit on his tines but overall he doesn't look to bad. Flesh has been completely stripped off and I bet he had been there for probably 1.5 years or so. Just want to finish the job which I think would make a good addition as outdoor decoration (i.e. over a barn door, etc). First issue....I have tried everything to degrease this guy out. He has sat in soapy water for ~4-5 weeks. I have tried degreasing chemicals from Lowes, Dawn, and Arm & Hammer laundry detergent but nothing seems to pull a couple of really dark and large spots out of the back of the skull. Did this in heated water as well. I have been trying to avoid acetone type stuff but I think I am at that point now. Any other suggestions? Second.....I have really enjoyed reading and trying different things while doing this and going forward, I think I will start doing my own euros on deer I actually take. How do you guys keep your degreasing water heated (90-120 degrees) for sustained periods of time....like for weeks? I bought an aquarium and an outdoor koi pond heater, both claiming to get and maintain water to 90 degrees but I don't think it ever did and sure as heck did not keep it there. What do you guys use to do this? I assume you guys are not keeping it on a propane heated surface for that long right? Thanks in advance!