/diy/ - Do It Yourself

I'm thinking about making a cooler.

It'll have a motor of some sort pump ice water through copper tubing that is surrounding the water that actually holds the drinks. I have it in my head, and that's the best way to put it really.

Good idea, or bad idea? Copper is expensive but I'm bored as hell and wanted to do this for a while. I got the idea from a small geothermal cooling project I did a while back.

Feedback is greatly appreciated.