A nice custom in the Netherlands is to issue commemmorative coins by cities, towns or provinces in memory of a special event.
Below you will find a few cities / towns / provinces which have issued coins this is not nearly a complete list.

Albrandswaard	Bergen op Zoom	Boxtel
Delfshaven	Den Helder	Den Haag
Ede	Geertruidenberg
Haarlem	Heerlen	's-Hertogenbosch
Hoek van Holland	Noord-Brabant
Putte	Rotterdam	Schagen
Sittard	Zaandam