This Faber-Castell two hole pencil sharpener has quickly become one of my most used desktop tools. I originally purchased it for my daughter, but I've taken to using it myself.
The larger hole is for crayons, jumbo pencils and simply starting a regular pencil off. The second hole gives regular pencils a very fine point. I find it easier to use than the Kum sharpener Mark loves. This Faber-Castell also captures the shavings in its case.
The fish design does not enhance performance, to my knowledge.