Carrie Bradshaw: The fact is, sometimes it's really hard to walk in a single woman's shoes. That's why we need really special ones now and then to make the walk a little more fun.
It's not just you! I started looking everywhere after I posted them, and all I can find are black leather, black patent, and mint green (and the mint just isn't as cute as the kelly green!).
I found the pic in a New York Magazine online article about hot flats, and underneath the pic it says that the shoes are available here:
Tip Top Shoes
149 W. 72nd St., New York, NY 10023 near Broadway 212-874-1004
I'd double check to make sure they have the right shade of green, though!