Pykrete is a material made from 14% sawdust and 86% ice. It melts at significantly slower speeds than ordinary ice. During World War II, the British instigated Project Habakkuk to investigate whether it would be possible to build a floating aircraft carrier out of it (which would effectively have been unsinkable, since ice floats), but the project was scrapped due to its expense.
Game and Story Use
- If you can make an aircraft carrier out of this stuff, you can make anything with it. Perfect for the Floating Fortress of a ocean- or ice-themed supervillain.
- In fantasy games, it might be possible to make ice "permanent" with magic - in which case there could be huge floating barges or even fortresses made out of ice in the setting.