Well, this explains a lot.
You've been through the joint like a giant vacuum cleaner, sucking up all the good stuff, shoving it in a giant carpetbag and taking off
I check every flea market possible, but let's face it, a place like NYC will have a vastly better "selection" than even a larger city, like Melbourne, would have.
I've got a couple of Phantom rings, but the ones I (and every other collector here) really covet are a rubber Phantom ring that would leave a "bad mark" impression on a villain's jaw (most have long since simply perished).
The other is a Captain Atom ring whose eyes "glow with an unearthly green fire".
Here's a Linky.