Bandai will be releasing Crystal Star and Cosmic Heart Compact Mirrorcase cosplay items this coming March. These are high quality full sized reproductions which will sell for 4725 yen, about $46 US. The compacts open up to feature a mirror and some small compartments. The Crystal Star was Sailor Moon’s transformation item from Sailor Moon R and the Cosmic Heart Compact was her transformation item from the Sailor Moon S series.
Source: Sailor Moon Collectibles