A gravy moat.

Ceramic dishes with a castle in the middle and a moat along the brim for your soup or gravy or sauces or what's your pleasure. And a working drawbridge. Or an entire dinner table with a castle in the middle and a gravy moat along the rim and you can put the dishes on the towers and ramparts. Along these lines, maybe Lego-branded eating utensils/plates, with different settings for your kids to eat off of.