I had noticed the dining room ceiling during our first meal, and decided to see what I could do with that. The tangle is based on the OAKhurst ceiLING so I call it OAKLING. It takes a fair amount of concentration!
I think the main thing about this tangle is to keep those initial squares and circles well-spaced. Also, make sure they're in a reasonably even grid. Here's a tile using Oakling:
|Tangles: Oakling, Bevia, Florez, black Pearlz, Umble, W2, Yincut|
Sue Clark (CZT) also designed a tangle based on this ceiling pattern. She calls it CHEERS, and you can see it here.