eatyourpeas
Fish Herder
And not that crazy and idea. I am doing a prototype cold water tank and am modifying this little cooler to test an idea. If you are handy, and know where to drill and build an overflow, well...Well, see, if you got a chiller, you could throw the beer in the fish tank for safe keeping. Win-win!

Frigidaire 0.3 cu. ft. 6-Can Retro Mini Fridge in Red EFMIS129-RED - The Home Depot
Provide an essential and ultimate addition to your home with the help of this Frigidaire 6-Can Retro Mini Fridge in Red. Offers great durability for long life.
www.homedepot.com
Edit: I am starting with a canister filter inside the cooler. It is a very small tank (3 gal.)