seems that a poster's given if you preorder your copy of 少女仕掛けのリブレット ~LOLITAWORK LIBRETTO~ via HMV Japan , be it whether the CD only or CD + DVD
CD -
http://www.hmv.co.jp/en/product/detail/3840608
CD + DVD -
http://www.hmv.co.jp/en/product/detail/3840607
CDJapan doesn't seem to have this at their end hmm