Shelterrific points to these innovative concepts for floating utensils: The ceramic forks, knives, and spoons are shaped with an empty ball in the center so that they will bob up and down rather than sinking to the bottom of your sink (and ending up in the garbage disposal).
The gastronomic buoys might also make for an interesting way to serve food: I could imagine them floating in a container of just about anything brined or, perhaps, in a bowl of bocconcini chilled in water. The utensils' creator, Seongyong Lee, has also designed a plastic ladle that, like the forks and knives, floats upright. Both designs only appear to be concepts at this point, though a hypnotic video of the ladle in action is available on YouTube.
Images: Seongyong Lee.