Fish bowl in a deep fryer
This brilliant (but obviously insane) Japanese chef created the Water Fryer, which is a fish bowl at the bottom of his deep fryer. Because the oil and water don't mix, as long as the fish stay low they're okay. Plus the crumbs from the deep fryer drop to the bottom which the fish eat as food. The fish allegedly live for up to 10 years as long they stay away from the oil. Or 2 seconds, if they come within reach of my mouth.