What to buy for first wedding anniversary?

Back at home, Robbie is inspired by a 50th wedding anniversary celebration to go after Julia. Julia's cousin Holly arrives just in time to let him know that Julia has gone off to Vegas to marry Glenn. Robbie, Holly, and Robbie's friend Sammy go off to the airport and Robbie gets on the next plane to Vegas. He has to buy a first class ticket, since the coach tickets are sold out.