Whenever I search for coffee tables, it seems like the shape choices are either perfectly round or some variation on a rectangle. Our home has an interestingly shaped living room, with bay windows and a fireplace that protrudes into the room. Right now the coffee table we're using is a long bench, which doesn't complement the room's layout. I'm convinced that we should buy a coffee table in an irregular shape to embrace the room's quirks and also to bring some attention to one focal point.
The most famous examples of irregularly shaped coffee tables include Isamu Noguchi's glass-and-wood table (image #2 above) and George Nakashima's stunning slab wood pieces (images #3 and #4). The good news is that there are even more options. Here's some inspiration to get you started, including some geometric marble-topped tables and a swanky tinted glass and steel confection from 1stdibs. Enjoy!
Oak flare coffee table, made from a salvaged tree, from Urban Hardwoods
Noguchi Table, designed by Isamu Noguchi for Herman Miller in 1954. Available at Design Within Reach
Persian Walnut Coffee Table by George Nakashima, from Peter Roberts Antiques on 1stdibs.com
The living room of Julianne Moore and Bart Freundlich's Manhattan duplex, with a Nakashima coffee table, from Elle Decor's LookBook
"Jess" irregular geometric tables designed by Rodolfo Dordoni for Minotti
Kidney bean coffee tables from Etsy seller Lunar Lounge by Jonathan Sebastian
"Free Form Coffee Table" in Polished Steel by Karl Springer, from Lobel Modern on 1stdibs.com
From Maureen & Lui's Living Room — Small Cool 2009 on Apartment Therapy
Images: As linked above.