At my work we are trying to keep people aware of agile practices. During an agile course I learned that we use practices, because we value something. (And principles can be regarded as a rule or code of conduct.)
To aid in the quest of boosting agile practices, I made the following A3-printable versions of the agile values and principles. As a bonus I added the manifesto for software craftsmanship, because I personally value it’s statement.
They are here for you, so you can also stick them on the wall of your office as a subtle reminder.