I needed a good laugh.
But seriously, if anyone knows of anyone having a 50th wedding anniversary, you can get a signed congratulatory certificated from the President of the United States.
I'm at my dad's and I don't have my rolodex. All you need to do is sent a letter with the names and the date of the anniversary to the White House Greetings Office. It takes about 5 weeks to get it, but it leaves a lifetime impression, especially if you play it up and have someone "Courrier" the announcement during a party....