I have two rubbermaid tubs that I am setting up, one for a baby ball python and one for an adult female Kenyan Sand boa. I am going to be using Fluker's Heat pads, as that is what i have access to. These ones are not the self sticking kind, so I am wondering what I can use to attach them? Duct tape?

Another question I have is that I want to put bungee cords around the tubs as extra security. One tub is a latching one so it is pretty secure, but the other is not. I couldn't find a latching one in that size. Can I put bunjee cords across the underside of the heatpads? Or is that a bad idea? If it is I was thinking I could thread a tie wrap through a hole in lid and bin and secure it that way. I tried binder clips, and I don't know if I would trust that.