If you don't have a decanter, what can you use?

I have used tupperware (without the lid), a flower vase, a sauce pan, etc. It is, of course, ideal to use an actual decanter, but when you can't find one, just look for something around your house that is clean, will give the wine exposure to air, and most importantly, something that can pour easily into a glass without spilling all over the place (for example, a bowl would not work very well).