I've only seen the pochettes in silver at the Horton Plaza store, the South Coast Plaza store and the boutique in the Saks at South Coast Plaza. The Horton Plaza store also had the gold pochette last time I was there.
I don't know if they're sold out already, but the boutique in South Coast's Neiman's also had the Papillon, but I don't know which color(s). The SA just told me she had them when I was there a couple weeks ago.
All these stores are in California, USA.