We talked about the NHRA giving these rings to renewing ticket holders a while back, and I just ran across a few being sold on eBay. It's amazing what people are paying for these things!!
http://www.ebay.com/sch/i.html?_odkw=nhra ring&_from=R40|R40|R40&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR1.TRC0.A0.H0.Xnhra ring nationals&_nkw=nhra ring nationals&_sacat=0
http://www.ebay.com/sch/i.html?_odkw=nhra ring&_from=R40|R40|R40&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR1.TRC0.A0.H0.Xnhra ring nationals&_nkw=nhra ring nationals&_sacat=0