I made some free, downloadable poster designs for use in actions against the deportation of innocent, hard-working people. You can download them here. Some designs have a PDF version available, which can be opened in Acrobat and printed as a large poster across several 8.5x11 sheets of paper on a regular printer. You can also save the remaining designs that are JPEGs and convert them to PDF yourself and print those the same way. Designs come with and without text, so you can add your own.