On January 12, 2017 Ireland released a set of 8 computer-vended stamps from its 9th definitive series "A History of Ireland in 100 objects". One of these stamps features a Late Mesolithic Period fish trap found in a bog in Clowanstown. This relic now can be seen at the National Museum of Ireland in Dublin.
From the 100objects.ie website, "It does not look like much: some small, smooth interwoven sticks embedded in the turf from a bog at Clowanstown in Co. Meath. The bog, however, was once a lake, and the woven sticks are an astonishing survival: part of a conical trap used by early Irish people to scoop fish from the lake or catch them in a weir. Radiocarbon tests date it to between 5210 and 4970 B.C. The Irish trap could be called a classic design: similar items continue to be used around the world."
In fact, to see a similar fish trap which isn't 7000 years old, go back to page 7 of this thread and you will find a modern one from Togo.