Ice house pictures: one person ice house made from freezer with safety features included?

Here are two pictures of ice fishing house designs I like due to the way they incorporate natural light for the short, dark days of winter:

But the most financially friendly and ingenious design goes to the builder of the freezer ice house:

This is a one person ice house made from a freezer. I remember the warnings when I was younger to never go inside an old freezer, but this is a very cool way to reuse the old icebox. Plus, this design comes with free integrated insulation.

Freezer  house