Dice towers are commonly used in modern times by people playing tabletop role-playing games, such as Dungeons & Dragons, to ensure that dice throws are random but confined to the table. No one should have to chase after an errant twenty-sider.
I had thought that dice towers were a fairly recent invention, but here’s one that dates back to, as far as archaeologists can discern, the Fourth Century A.D. It’s Roman and the text says, when translated from Latin, “The Picts are defeated, the enemy is destroyed, let us play carefree.” The Picts lived in what is now Scotland and were sometimes defeated but never conquered by the Romans.
This dice tower, though, was found not in Britain, but near the German villages of Vettweiss and Froitzheim in 1985. It resides at the Landes Museum of Bonn, an archaeological establishment in the Cold War era German capital city.