I went to Lowe's and they had a variety. I chose the black because it is flatter and not so waffly and so, easier to clean and I liked the color. It seemed sort of stark so I put in a bit of cubed coconut coir, which seems to be a safe enough substrate as a lizard could not accidentally ingest the 3/4" cubes. The same shelf liner company also makes really nice looking adhesive-backed cork liner, I bought a roll and in about a minute installed it in the back of one of the snake aquariums and it looks beautiful as well as natural.
Reptile Fashion!

