I agree with another food bowl, mine have the ones that clip on to the side of the run or cage and i just fill it from the top, its got tiny holes in the bottom so all the dust falls through, i brought them on ebay but have seen them in shops, they are called gravity bin feeders by super pet, or if not a heavy ceramic one might help as already suggested,
as for the rest of the mess thats what animals do best to be honest mine like to burrow under their fresh hay and pull the newspaper up and make it messy, seems tidy is'nt good enough, luckly mine are all in sheds so the mess does'nt matter and gives me an excuse to go out to them,