Originally Posted by
DeadKnightS2
A king tells his three sons that he is going to die soon and needs a succesor to his throne. "The smartest son will inherit my throne. Take this coin and buy something that you may use to try and fill this room from side to side, top to bottom." He gave them a golden coin and sent them off. One son bought bags and bags of feathers, but they filled only one side of the room. Another son bought several bales of stray and spread them in the room, yet they filled only a corner of the room. The smartest son found a little shop, bought two small items and put them in his pocket. When he returned to the room, he showed his brothers and father that they could indeed fill the room.
What were the two items?