I'm not sure what you're referring to, but I just use porcelain ramekins, they are pretty cheap (I paid $2.00 each at Target and they are about 4 inches across) and heavy enough not to tip over. My biggest snake is only 1000g though, so I'm not sure how tip resistant they are for larger or very active snakes.

Oh, I found them. I have these:
http://www.target.com/p/target-home-...lot=medium_1_4