Josh,
Interesting post.
We built a number of small bunkers, similar to your description above, at Sagebrush. Thinking quickly, there are tiny bunkers golfers will have difficultly comfortably playing a shot from at holes 1, 2, 3, 7, 14 and 17.
Aesthetically, the tiny bunkers provide nice contrast considering a larger number of MASSIVE sand hazards feature throughout the Sagebrush course!