I cast another vote for the simple cat stove from Jim Wood's site. Unless you have a very narrow pot it should work just fine. I made mine in '06 and it's still going strong. Give it a whirl. If you don't like it you're only out 40 cents.

Every design is a compromise on something and you can go crazy trying to save .004 ounces of alcohol. This stove is tested and proven.
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If you only travel on sunny days you will never reach your destination.*

* May not apply at certain latitudes in Canada and elsewhere.