Oh dear a Maine Coon with water issues - how unique (NOT!). They ARE water cats. DO NOT USE PLASTIC ever for cats as it can cause skin problems. You've gotten many good suggestions here. I use a heavy ceramic bowl for Mishi. He's not a water bowl tipper, but he usually prefers to drink his water straight from the source - the bathtub faucet. Good luck and may we get pictures of your solutions/results?