A prod or teaser or tickle stick used by a diver to urge a lobster from a hole includes an elongate, small diameter distal end for probing in the holes. The proximal, or handle end, includes a portion with a density less than that of sea water. The overall density is greater than that of sea water. When...http://www.google.es/patents/US5548917?utm_source=gb-gplus-sharePatente US5548917 - Lobster prod with legal size gauge
