The Marketplace: New Products

Every summer manufacturers make it easier and more seductive for a man to go down to the sea and beach again. Some of their newest lures to a life in the midday sun:

> A chaise longue, powered by a small gasoline engine and equipped with polystyrene foam pontoons, will carry a chap out to sea in semisubmerged comfort. Basic cost: $179.50 at Abercrombie & Fitch.

>If racing is the game, there is the water-bomb Aquakart, a modified fiberglass hydroplane capable of 35 m.p.h. to 50 m.p.h., weighing only 125 Ibs. and available...