0 Euro - Berck-sur-Mer - Rencontres Internationales des cerfs-volants

Berck-sur-Mer's kite festival — the Rencontres Internationales des cerfs-volants — has run since 1981 and is among the largest of its kind in Europe, drawing competitors and spectators to the Opal Coast beach in April each year. The 0 Euro souvenir format, introduced around 2015 through a network of ATMs and tourist vendors, has become a reliable revenue stream for municipalities and event organizers, with Oberthur Fiduciaire producing the notes under the same security printing standards applied to genuine euro issues.

Face value is legally zero — these are not tender in any jurisdiction.