A patent for a Duck Bill Polisher (Score 1)

An apparatus to shine even the dullest duck bill. Using a soft pad with an adhesive film sprinkled with micro abrasive particles, or similar buffing technology, one can construct a hand held device for polishing duck bills.

This can be utilitied by park employees at ponds frequented by gaggles [technically the word is paddlings] of ducks. The market is huge as this can be used in almost every community and office park with a pond or fountain. Your community no longer needs to be embarrased by ducks with dull bills!