There is a nice looking one on eBay. Black http://cgi.ebay.com/ebaymotors/1970-69-68-67-66-GS-BUICK-BLACK-PASS-SIDE-FLOOR-MAT_W0QQcmdZViewItemQQcategoryZ34206QQihZ002QQitemZ4652922762QQrdZ1
Nice rear ones too Black http://cgi.ebay.com/ebaymotors/1970-69-68-67-66-GS-BUICK-BLACK-REAR-FLOOR-MATS-71-72_W0QQcmdZViewItemQQcategoryZ34206QQihZ002QQitemZ4652920998QQrdZ1
Dont forget the matching trunk mat http://cgi.ebay.com/ebaymotors/1970-69-68-67-66-GS-BUICK-BLACK-TRUNK-FLOOR-MAT_W0QQcmdZViewItemQQcategoryZ34206QQihZ002QQitemZ4652924044QQrdZ1 .