According to video game importer and delightful resource NCS, a Star Wars Helmet Replica Collection is on the way from Bandai.  Check it out here.  A factory sealed set of 6 boxes has miniature replicas of Boba Fett, C-3PO, Darth Vader, R2-D2, a Stormtrooper, and a TIE Fighter Pilot Helmet.  Unless there's a secret helmet.NCS is selling the box for $49.90 with a June delivery estimate.