My collared lizard is so active and loves to jump around on his rocks but I was always scared they would crash down and hate using silicone so I figured I'd make some of my own They are home made clay (dried in the microwave) and acrylic paint. I got the idea from another forum about DIY hides but just changed it to rocks. I used plastic bags, crumpled up paper plates, cardboard, wood, pretty much anything I could think of for the molds. I didn't seal them yet because the inside isn't quite dry all the way but I think they turned out ok. I need to practice my painting a little though He loves them so that's what matters anyway! I was going to spray paint them but the acrylic was so much cheaper and I've only used 1/2 of the bottles for 6 rocks so far.