How to use an old freezer/fridge as a garden box or fish pond? How would you establish drainage?

Not that I have space for such here at home, but thinking along green lines and how to recycle old appliances. I know my grandpa had an old freezer he used that was converted to a mini green house wiht some grow lights, but I was thinking more along the lines of container gardening or fish pond.

Check this out.
http://www.youtube.com/watch?v=62ge_AqaVtM

Be sure and get your fridges from a recycler that has removed the freon.

I'm planning on putting mine on wheels. I'll return to share any insight I gain from my fridge-planter, but it will be a while before I'll be doing it.
If you are in need of drainage, this should solve the problem.
http://en.wikipedia.org/wiki/Hole_saw

If you have to much drainage, I suggest patching the holes from the inside with an appropriate sized piece of plastic and silicone caulking.
If you have a old deep freezer theres usally a drain hole already in it, I guess if you can reach it or find it if the water is dirty but maybe, or maybe just use a sub pump?