*Nods to Yeung Gor the forum member for the idea on this one.*
If the various wuxia characters could briefly come to the modern real world and take something back to their native eras with them, what would it be? Note: if they take back some device that requires the use of electricity, they won't have the power supply to use it. Even battery-operated devices will only work for as long as the battery holds out, and modern communications devices such as cell phones and PDAs that depend on global telecommunications networks will also be useless.