These are some tub cages (made by Wellington Hamsters not me) that I use. These are old pictures I have made about 7/8 more of them since. I have also made some smaller ones which I use to seperate boys and girls from litters before they go to their new home.
This is a split cage also made by Wellington Hamsters. They are really good for pairing up Chinese as it gives you and idea of how they are going to react before you introduce them.