A married couple was having dinner and the conversation got around to transplants and artificial body parts.
"They'll make an artificial dick next," the wife said.
"Bullshit!" replied the husband. "There are some things you can't make. Besides, what would you make it from?"
"Iron," she told him.
"Don't be stupid, woman. It'd rust."
"Ok, brass then," she insisted.
"That's bloody ridiculous," scoffed the husband. "Men would never be able to keep it clean."
"Rubbish!" she told him. "I've watched you polish yours while watching porno videos for years!"