fanciful quatrefoils

Ever since this shape was featured in the November issue of Domino I have been seeing it everywhere, from jewelry to interior accents. These are just a few of the pieces I have come across in the past two weeks that feature the fanciful pattern.
(screen and mirror from Julian Chichester, pierced cylinders from Pieces,
chair from Hickory Chair company by Suzanne Kasler)

What is your favorite shape or pattern in interior design? For the longest time I couldn't get enough of the Greek key pattern but I think quatrefoils may just take it's place!