Water bowl flipping.

[Chilli]

Everyone beat me to suggestions. =D
If you want to continue giving him water in a bowl(instead of using a bottle), I suggest either what Blue_Frog gave a link to (we have one to put Larry's food in)... but they usually aren't that big, so it would probably need to be refilled quite often..
Or, what I would go with, a Ceramic food bowl. I use them for my rats' food, and they haven't managed to tip it yet. Of course, rabbits are bigger than rats. =)

There is the kind that you can find in almost any petstore, and come in alot of different sizes and such. They're pretty heavy.. so they're not easily tipped over.

[Khay]

rofl.

As soon as I read the title "Water bowl flipping." I immediately knew it was about a rabbit They're naughty little buggers

I dont like water bottles, as I feel they are harder to keep clean and rabbits drink so much more water from bowls - The more water they drink, the better, as it's the most important part of their diet. (If they aren't drinking much, they won't eat much, and eating constantly for rabbits is necessary.)

My rabbits have heavy bowls, my californian (13 lb rabbit) can't flip it, so what I would suggest is just get a heavy croc like other people have suggested.

And you should not immerse your rabbit in water, it can cause a severe shock to their system. What you can do is get a bowl with a couple inches of water and just wash his bottom off.