im invited to a 50th wedding anniversary and the invite says no gifts but i's lioke to bring something....question.... what do i bring?

There are some sites on the net that offer events of the day in history printed on pretty aged paper. You could get a copy of the things that happened on the day of their wedding. It's a simple inexpensive gift, but it'll take them back and give them reminders of their special day and that is what celebrating an anniversary is all about.