I like them and think they would look good in a tank. I my be interested in something like that for a future 55 gallon convict breeder/feeder tank I will be setting up. Definitely looks better then the plain pottery
This is just one sample piece that I made some time ago.. It happened by accident, too.. So now I have some ideas to toss around like Shellie caves, Pleco Caves, and some hollow african root-wood.. glazed a chocolate brown.