I have water stations down in critter land - two of them. One is a large continuous water bowl - the kind with the large bottle on top. The other is the same version of that - just a bit smaller. They work well but I feel like they get grubby so quickly and the quality of water isn't fabulous. In the past we have had fountains - ones that have the continuous movement of water and filtration. The problem we had was that they only hold a small amount of water - with lots of critters - it was a constant refilling effort.
I found this little gem on Amazon. It's called the Catit Senses Drinking Flower Fountain:
The ferrets - LOVE - it. They have all visited it multiple times today. The kitties like it as well - but they are not nearly as animated as the ferrets. I also ordered a frog fountain for their other bathroom - it should come this weekend and we will see if they like it. I think the ferrets will really enjoy it because it splashes. We shall see.
I will try to get some pics this weekend....