European and Mediterranean Plant Protection Organization has released the EPPO poster, which is available as downloadable pdf at their website.
From EPPO Press release:
EPPO has prepared a poster to raise public awareness about the risks of moving plants and their associated pests during international travel and to encourage responsible behaviour. It is primarily intended that the poster should be displayed in airports or any other sites where international travellers will see it (e.g. seaports, railway stations, travel agencies, embassies).
EPPO is an intergovernmental organization responsible for European cooperation in plant health. Founded in 1951 by 15 European countries, EPPO now has 50 members, covering almost all countries of the European and Mediterranean region. Its objectives are to protect plants, to develop international strategies against the introduction and spread of dangerous pests and to promote safe and effective control methods. As a Regional Plant Protection Organization, EPPO also participates in global discussions on plant health organized by FAO and the IPPC Secretariat.
Via Petter Françoise