There are lots of fun and experiment involving dry ice, only if you can handle it carefully. This is what happened to YouTube user who calls himself, the Crazy Russian Hacker who demonstrates how the coins will react when stuck into dry ice.
The guy who is now popular on YouTube hot his hands on a brick of dry ice, and stuck the edge of the metal coins into the frozen carbon dioxide.
During the expirement, the coins seems to “dance and jiggle” back and forth as the metal causes the frozen water to instantly vaporize.
The drop in pressure also makes the coins moves which is pretty cool indeed.
Watch the experiment featuring coins and dry ice: