BoidKeeper is exactly right. Never use the sticky stuff. It works just as well not being stuck....
I use a human heating pad. There is debate if this is safe or not but I only use one and so far, amazing! Since I use the Reptile ESU thermastat the heating pad is not on all the time. Its turned on and off automatically to adjust the temp. The heating pad could EASILY go above the 95 so it hardly has to be on long before the thermastat shuts it off again. I check it each day though to make sure nothing looks like its malfunctioning. And I have also replaced it once this year for peice of mind. Saving the "old" one for my bad back *LOL* I just want to make sure its new, and working properly. The thermastat prob sits inside the rubbermaid, but underneath the towel (paper towel) and underneath his warm hiding spot so the heat is always controlled where he is most.
Anyways, I have never had an issue. The heat is consistant, the plastic never ever gets near melting, and my snake is happy as a clam!
Marisa