World War II plan to create ships from ice came to an abrupt end when the frozen test boat melted and sank

"An attempt to test a World War II plan to create ships from ice came to an abrupt end when the frozen boat melted and sank"

Reader comment:

Here’s an 8 min. clip of the Mythbusters episode where they made a speed boat out of frozen newspaper. It worked surprisingly well … for about fifteen minutes.