We recently bought a 'Staywell Road Refresher' and it's brilliant!
We had originally bought it for travelling but also found that it is totally 'Bengal-Proof'. No spillage at all.
Our girl Candy has to be a world record holder for being able to empty a water bowl with her paws in seconds.
Candy pictured above - extensive testing was performed
We tried this bowl with her and it stopped immediately. Amazing!
The added benefit is that it is also pretty heavy when filled. So, when they get frustrated they can't just flip it over. I know, she has tried.
The design is simple with only three parts making cleaning very easy.
It is a bit pricey but you may be able to get a discount at shows.
http://www.dogservices.co.uk/press2.php?ID=45
http://www.petplanet.co.uk/product.asp? ... pf_id=7704