Dan Marino Signed Miami Dolphins Flash Mini Football Helmet (Beckett). This officially licensed mini football helmet has been personally hand signed by Dan Marino and authenticated by a top 3rd party authentication company. All autographed sports collectibles are limited! Order now to add this timeless piece of football memorabilia to your collection before it’s gone. Flash speed mini NFL football helmet autographed by Dan Marino and authenticated by Beckett. Tamper-proof authentication sticker from Beckett. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. Odell Beckham Jr Autographed Pro Style Custom Football Jersey Orange JSA. Denzel Mims Signed Pro-Edition Black Football Jersey (JSA). Denzel Mims Signed Pro-Edition Gray Football Jersey (JSA). Denzel Mims Signed Pro-Edition White Football Jersey (JSA).