Polygonia is going to release the Hatsune Miku ( 初音ミク ) Yellow Miku ( yellowミク ) 1/7 resin cast GK from the popular singing synthesizer application “Vocaloid 2″. Will be released in Wonder Festival 2011 [Summer] on July 24, 2011. Price unknown. Kit is not pre-painted nor assembled.
The table number of Polygonia in Wonder Festival 2011 [Summer] is “8-13-02″, you will find them there.
- Official Wonder Festival homepage
http://www.kaiyodo.co.jp/wf/ - Official Polygonia homepage
http://www.polygonia.com/ - Official Vocaloid 02 Hatsune Miku homepage
http://www.crypton.co.jp/mp/pages/prod/vocaloid/cv01.jsp

Hello, do you know of any e-shop that sells this item ?
Thanks.
Your best bet is ebay or Yahoo auction.
Or you can wait for the next event and hoping that they will re-release her.