I'm sorry I don't have any other ideas besides dittoing the kiddie pool, or plastic storage container thingy, but I just want to say that is SO adorable, and I'd love to see a vid lol.
Dublin loves water, and wishes we had a kiddie pool (we're in an upstairs apt.), but he does make a frigging MESS every time he drinks water. All around the bowl (like at least a cup of water coming from the sides of his mouth as he drinks), and of course a trail from his face all over the kitchen floor. I've been thinking about getting the Neater Feeder, which may help your situation as well, along with providing the mini-pool outlet for her.
Dublin loves water, and wishes we had a kiddie pool (we're in an upstairs apt.), but he does make a frigging MESS every time he drinks water. All around the bowl (like at least a cup of water coming from the sides of his mouth as he drinks), and of course a trail from his face all over the kitchen floor. I've been thinking about getting the Neater Feeder, which may help your situation as well, along with providing the mini-pool outlet for her.