How large are pomelos?
Pomelo
The fruit is also known as jabong in Hawaii and jambola in varieties of English spoken in South Asia.
Typically, the fruit is pale green to yellow when ripe, with sweet white (or, more rarely, pink or red) flesh, and a very thick albedo (rind pith). It is a large citrus fruit, in diameter, usually weighing . Leaf petioles are distinctly winged.
The typical pomelo is much larger than the grapefruit, and also has a much thicker rind. It tastes like a sweet, mild grapefruit (believed to be a hybrid of "Citrus maxima" and the orange). The flesh has none, or very little, of the common grapefruit's bitterness. The enveloping membranous material around the segments is bitter, considered inedible, and usually discarded.
Watermelon
Farmers of the Zentsuji region of Japan found a way to grow cubic watermelons by growing the fruits in metal and glass boxes and making them assume the shape of the receptacle. The cubic shape was originally designed to make the melons easier to stack and store, but cubic watermelons may be triple the price of normal ones, so appeal mainly to wealthy urban consumers. Pyramid-shaped watermelons have also been developed and any polyhedral shape may potentially be used.