When a guy who just loves to rub against silk curtains ejaculates so much onto them that they become hard and crusty with dried semen. Ideally they will steadily grow in size until there is at least an inch thick layer of semen caked onto the curtains. At this point they are ready for harvesting. Cut the layer into one inch by one inch squares and sell them to your friends.
"Dried semen squares, directly from my living room squirtains. The melt-in-your mouth feeling that we all know and love!"
The people from the country of Sparta; a bad-ass bunch of soldiers who lived many centuries ago and were trained from birth to be soldiers. the lived, breathed, ate, and drank soldier. In the battle of Thermopylae, during the Greece-Persian war, about 300 Spartans held a hill against a large force of Persian troops, about 20,000.