DIY fridge

You might say "cool".  Sorry, couldn't resist the pun.

The actual performance of his device isn't included in this video.  That could be interesting to see.

This is of interest to me for its performance in terms of electricity usage.  Even a small fridge can pull a lot of electricity.  If this one is a better design, then it may be worth considering as a project.

Note:  He says that it requires some moving parts, which means more electricity.  Also, the follow up test wasn't very informative about energy use, but he did say that he would have a newer version that might do better.  Not sure if that means that this isn't very efficient in terms of energy usage.  The result is a definite maybe as for making one of these myself.