Some of these are potentially rip offs, but I know nothing about plastics, so I can't be sure, anyways, here are some auctions I found, all are Hasbro, unless stated otherwise:
Driger S: http://www.ebay.com/itm/BEYBLADE-DRIGER-...500wt_1287
Dragoon S: http://www.ebay.com/itm/BEYBLADE-DRAGOON...500wt_1287
Driger V2: http://www.ebay.com/itm/BEYBLADE-DRIGER-...500wt_1287
Black Dranzer: http://www.ebay.com/itm/BEYBLADE-BLACK-D...500wt_1287
Dranzer S (Hasbro): http://www.ebay.com/itm/BEYBLADE-DRANZER...500wt_1287
Dranzer S (Sono Kong): http://www.ebay.com/itm/130565823573?ssP...500wt_1287
Draciel S: http://www.ebay.com/itm/BEYBLADE-DRACIEL...500wt_1287
Driger S: http://www.ebay.com/itm/BEYBLADE-DRIGER-...500wt_1287
Dragoon S: http://www.ebay.com/itm/BEYBLADE-DRAGOON...500wt_1287
Driger V2: http://www.ebay.com/itm/BEYBLADE-DRIGER-...500wt_1287
Black Dranzer: http://www.ebay.com/itm/BEYBLADE-BLACK-D...500wt_1287
Dranzer S (Hasbro): http://www.ebay.com/itm/BEYBLADE-DRANZER...500wt_1287
Dranzer S (Sono Kong): http://www.ebay.com/itm/130565823573?ssP...500wt_1287
Draciel S: http://www.ebay.com/itm/BEYBLADE-DRACIEL...500wt_1287