Blender

This doesn't pertain to Korea, but I saw this blender turn marbles into glass dust on Willitblend.com. I was curious, so I went to the web site of the blender's manufacturer. You have to check out the demonstrations. I love this guy, he is sooooo awkward it is hard to watch. I also love how he tells you that he had made a joke before you realize he is even telling a joke. It is priceless. If you have some spare time, check it out.
http://www.blendtec.com/demos.aspx