for our labours during seven moons each seven jewels of valinor , and seven robes of magic that only gwendelin o can weave , and each a sack of gold ; but for our great labour during three moons in thy halls unwilling , we ask each three sacks of silver , and each a cup of gold wherein to pledge thy health , 0 king , and each a fair maiden of the woodland elves to fare away with us to our homes . ''