The following extract is from wikipedia and was the best example I could find on the web that described the concept of Wabi-Sabi. The attached images are what I could imagine connote a wabi-sabi home interiors with a more western tone.
Wabi-Sabi represents a comprehensive Japanese world view or aesthetic centered on the acceptance of transience... beauty that is "imperfect, impermanent, and incomplete" .... understated elegance....It can also refer to quirks and beauty or serenity. Wabi now connotes rustic simplicity, freshness or quietness, and can be applied to both natural and man-made objects. Sabi is beauty or serenity that comes with age....
The idea of being surrounded by natural, changing, unique objects helps us connect to our real world and escape potentially stressful distractions....
Image from 'Simple Home' by Mark and Sally Bailey