How many cups of flour and water to make a bowling ball?

If one were to sculpt a solid weight bowling ball from the suggested paper mache, it is likely to take at least 5 cups of water for a 5-pin bowling ball and at least 16 cups of flour for a 10-pin bowling ball. Consider in order to solidify the mache mixture, that each of these measurements will need to mix at least twice as much water, over the flour.