I was researching some possible Welsh ties to my family name, looking up Welsh culture and customs, and came across mention of the puzzle jug. Didn't know what it was, so I looked it up and found a nice video of making one. Looks like the inventors were certainly enjoying their craft!
"On Nos Galan Gaeaf in Montgomeryshire, in many farmhouses, a mash was made of nine ingredients: potatoes, carrots, turnips, peas, parsnips, leeks, pepper, salt and new milk. In the mash was hidden a wedding ring. The young maidens of the local village would dig into the mash with their wooden spoons, anxious to learn their fate, for the one who found the ring would be first married. In Carmarthenshire, the mash of nine ingredients, stwmp naw rhyw, was not used to foretell the future, but nine girls used to meet to make a pancake containing nine ingredients. This was then divided among the girls and eaten. Before morning, each girl would have a vision of her future husband. In many parts of North Wales, where the custom of bundling was a very common practice (much frowned upon by the English judiciary) the young dreamers would often find their future husband in bed with them!! Along with the mash, or the pancakes, came the wassail bowl. The wassail was often put inside a puzzle jug, with many spouts, and the unsuspecting drinker would find himself doused with beer, wine, or cider by drinking from the wrong spout. Some of these puzzle jugs can now be seen at the National Folk Museum of Wales at St. Ffagan, near Cardiff. The custom is
very similar to one observed by the author in southwest Germany, where participants in a contest drank out of a large glass boot that had to be handled a certain way to prevent spillage."