Hi Fishy........ I bought those cave houses from my local pet store called Buzz n Bees. They are actually in the reptile department not in the fish area. I had actually bought a fancy log thing with plastic plants on it but when I got it home and was washing it, I noticed it had quite a few sharp edges on it so I traded it with my daughter for the caves I bought her for her fat tailed getgo.
If you cant find any where you are, pm me and I can get them here and mail them to you. They are not very expensive. I think I paid like 12.00 for the small cave and 20.00 for the large one. Depending on what size tank you have the large one will not fit in a standard 10 gallon tank, but the small ones will. Just let me know.
Thank you all for your comments. I can not wait till Tuesday!