that is the kind of tub he is talking about. they come in all different colors and sizes. i have a 10 gallon one for my firebellied toad, another 10 gallon one for a temporary tank for my juvi crestie, and a 30 gallon one for my adult crestie.
here is a picture of the one that houses my adult crestie. the picture was taken before i put the crestie in it so dont waste your time looking for him lol. i still need to add more plants to it.
Someday, I'd like to make the perfect crestie cage. I think I'd need more than a hot glue gun for joining pieces. In fact, I'd probably end up holding the pieces together with a metal or plastic frame. From your other post, it's obvious that my plans are fancier than what you need right now.