Are these available in HK? For those who don’t know what they are it’s basically an electronic bidet which replaces the toilet seat. Japanese invention and most (if not all) public toilets in Japan have them equipped (as well as hotels etc). Example here: http://www.sal.net.au/?gclid=CML7l9yH0pQCFSY1agod6SG0lQ
In addition to axptguy's reply, you can also find them in large Japanese dept stores like Jusco, Apita/UNY and maybe even Sogo. They can provide installation as well.
That's excellent. Thanks for the replies. Even though I thought they were weird when they were first introduced to Japan about 7 years ago I have grown to love them.