Since we had little control over the printing quality of the posters in different offices, I went with a simple design with nothing to do besides print it out and tape it up. There are no edges to trim, and the two different versions were together in one pdf, so that both variations would be posted equally.
Each postcard has the option to check off a different office. The cards were mailed out to the different offices to promote inter-office connections. People who have only ever emailed were able to send thank you notes to each other from across the country.