The Eureka was a machine for generating Latin hexameters, invented by John Clark of Bridgwater and exhibited in 1845 in the Egyptian Hall. It took around a minute to create a line, during which time it would play the National Anthem. For more details, see here. The button below will run a script to do the same thing, but without musical accompaniment (you can hum). Occasional errors in the vocabulary are authentic, taken from the original as reported by D. W. Blandford, ‘The Eureka’ G&R 10, 1963, 71-8.
Nigel Holmes, Thesaurus Linguae Latinae.