Post a notice at your local library, community center or any other free bulletin board with a short description of your skills and a way to contact you. For instance: "Need help moving? Yardwork? General Laborer available for odd jobs."
You could also post a free ad on Craigslist. You can also check Craigslist for odd jobs. Please see my notes under the section on Make Money Scams before considering a get-rich-quick idea.