We came across this article and think its hit the nail on the head. Certainly, from visiting trade fairs and talking to my suppliers, these seem to be the main ones. I do particularly love 'Encaustic Tiles’. Ted Baker do a stunning range for around 60GBP per metre, which would lift a drab hallway or create a feature wall in any bathroom. But my favourite are the ‘Wooden split face tiles”. Ive seen these down and the are just wow! Take a look at the link and fuel your inspiration.