Cyprus is an island country in the eastern Mediterranean Sea and a member of the European Union since 2004, which currently does not have a location stamp.
It would be very nice if every country in the world had at least one location stamp that is not a flag.
The Idol of Pomos
is a stone prehistoric sculpture found near the Cypriot village of Pomos. It dates back to the Chalcolithic period, circa the 30th century BC.
The sculpture is on display in the Cyprus Museum in Lefkosia (Nicosia).
The sculpture represents a woman with her arms spread and was probably used as a fertility symbol. Many similar sculptures have been found on Cyprus. Smaller versions were worn as amulets around the neck, just as this idol wears (a small copy of) itself.
In 2008 Cyprus adopted the Euro and the Idol, a representation of Cypriot prehistoric art, was chosen to be displayed on the Cypriot euro coins of 1 and 2 euro.
(Source: Wikipedia)
There are also numerous souvenirs with the Idol being sold to tourists visiting Cyprus and I think it will also look nice as a location stamp.