(excerpt from) Reuters
Green candidate for mayor based in Occupy Tucson tent
…The Green Party candidate for mayor of Tucson [Mary DeCamp], who is days away from losing her home to foreclosure, is flanked by fellow Occupy Tucson activists as she directs her long shot bid for public office from a borrowed tent in a local park.
“November 10th is my eviction date,”…
DeCamp kept her distance from Occupy Tucson at first, thinking that her presence might politicize an anti-Wall Street movement aligned with groups around the country protesting economic inequality, high unemployment and corporate greed.
Ultimately she decided politics needed to play a part, and that Green Party ideals aimed at protecting the little guy dove-tailed with Occupy Wall Street goals of speaking out for the so-called “99 percent.”
DeCamp now counts herself among a couple of dozen hard core Occupiers who have remained camped night after night, amassing citations for staying in the park past its 10:30 p.m. closing time…
A 17-year resident of Tucson, DeCamp said she is in the Occupy movement for the duration and will decide later where to go when it ends, whenever that might be…
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There is a database of Green Party candidates from around the country at the Green Party of the United States website: here.

My thoughts about what occupiers should and might do on Election Day are at onthewilderside:
https://wilderside.wordpress.com/2011/11/07/ows-and-politics-what-should-an-occupier-do-on-election-day/
Mostly: If there is an independent or third party candidate you like, you might consider pulling the lever for them. Other than that, write-in “occupy”.