My mother, who was born in Wales, sometimes earned change in the summers by waiting on the train station platform and reciting the name of the town on those passing through for vacation….
I’ve yet to make it to Wales, but when I do this will be one of the stops… the link here is to a .wav file of it being said…
http://www.llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch.co.uk/soundfiles/llandad4.wav