I'm using a script that will request an AWS spot instance for 6 hours, reporting the address when fulfilled:
https://gist.github.com/nl5887/56912b70b782baa4bd580ae22bde6...
345 karma · joined December 10, 2013
https://gist.github.com/nl5887/56912b70b782baa4bd580ae22bde6...