Ayumi Phone Straps

I know that I'm probably posting in vain but does anyone know of any places to get Ayumi tour phone straps? I know they're rare and once in a while they pop up on eBay (usually for insanely high prices) but even then, I'm not guaranteed the auction win because of snipers.

The one for the latest tour was really cute but I doubt anyone would want to sell theirs!