Hear ye, the latest from The Disseminator’s fount of knowledge (via Dom via The Partners aka Superunion).
The linked website is an ephemera festival. It features the objects found in the Amstel River whilst it was being excavated to build a new train line. Everything found has been logged, photographed and grouped into a huge archive.
Amazingly, all the objects have been placed in date order as well. You can peruse the archive and also the images are available to collage and experiment with.