We use a non skid stainless bowl.... and in the car, we have flat sided stainless steel buckets that we clip on to their crates. Sailor's is cliped on to the outside of one of the girl's crates.
Sailor came with a platform feeder, that has plastic bowls. He's really connected to the bowls. I tried feeding him from another bowl and he wasn't into it. I really want to get him converted to stainless... I really feel its best.
On a side note, while picking food up at petsmart the other night, I saw the coolest thing. it was a feeder that held two bowls.
The "stand" was actually a resevoir that holds fresh water. The bottom of the water bowl was like a fine colander. When you lift it up, it would strain out all the goop that seems to collect in the bottom of the bowl. You can rinse it off, put it back, and the water would be fresh... not contaminated.
I love this concept. We tried one of the water bowls with the 5 gallon bottle attaced... we thought it would be great at the lake, on our deck. but the dogs didn't like it, because they prefer a clean bowl.
The only bad thing about the bowl I saw at Petsmart was that it was ..... PLASTIC. I'd buy it in a heart beat if they made one in stainless.... which shouldn't be too hard to do!!!