The Libertarian National Socialist Green Party

From the You Can't Make This Stuff Up file, a repost from 2007:

Who knew?

Here's their site. Complete with swastika.
More accurately, at least according to heraldic vexillology, it's something like:
Field vert, a roundel argent, a swastika sable. Or some such

Although I took a "Springtime for Hitler" approach in that post, these are hard core Nazi wannabe volk, proceed at your own risk.