Local glassmakers had the idea that glass balls would look pretty hanging on a Christmas tree, and nearly every house in the village was converted into a small factory. At its peak 95% of baubles in the USA came from Lauscha.
Who said television was anti-intelligence? 
Because they grab the first story from Google and call that research, ignoring the developments that lead to this. Yes from about 1860 Xmas ornaments grew to be a major export, but they had been using
home lampworkers in Lauscha for long before that, circa 1800. Pearls, Beads, Eyes, Lab glass, Syringes, thermometers, barometers, etc. Anything that could be created with nothing more than a flame and glass tubing. So naturally glass figures/animals too. A similar industry but with less novelty existed in Northern Bohemia.