Yeah they are too roomy. The BP should have to ball up a bit and be squished inside its hide. I also use plastic flower pots because they are cheap, easy to cut down/make a doorway in, come in all sizes, and they don't look too bad! You can get the ceramic/clay flower pots if you want, but it's hard to chip a doorway out without cracking the whole thing and breaking it. I always pick up my flower pots in the fall when they go on sale, I got these for 15 cents a piece!