Lobster Pot markers.

"When caught in great quantities or stranded on shore after severe storms, lobsters served as garden fertilizer and as a food staple given to widows, orphans, servants, and prisoners. It was so commonly used as a food for servants and prisoners that Massachusetts passed a law forbidding its use more than three times a week - - a daily lobster dinner was considered cruel and unusual punishment! The American revolutionaries hurled the insult "lobsterback" at the red-coated British. It wasn't until the 19th century that lobsters regained their status as a luxury food item, mostly as a result of their popularity with royalty. Since that time, lobsters have become big business. "