You can download this template and use it to order a banner, either from a local print shop or on-line. This banner will be posted at nuclear weapons sites across the country on January 22; it can also be used at any federal building. It is sized to make a 3 X 8 foot banner. It can also easily be sized to be a 1 1/2 foot by 4 foot banner if you just want a one-person banner.
Additional resources are available on the resource page: here.