As Japan plays host to a record influx of tourists, one of the country's more private attractions -- the high-tech toilet -- is becoming a must-have in luxury bathrooms worldwide. Japanese company TOTO, which pioneered the electric bidets it claims have sparked "a global revolution from wiping to washing", says overseas revenue for toilets has roughly doubled from 100 billion yen ($673 million) in 2012. IMAGES AND SOUNDBITES