We have had immense pleasure and success using our DogIt water fountain! Here is a video of both Sayang and Scooter drinking from it at the same time!
As you can see, spills are minimised by placing the fountain on top of a towel.
Do note that you can also buy the cat version, called CatIt. The design is almost the same, only that it is blue in colour. You can also get a bigger size, meant for big dogs.