“If it were not for the presents, an elopement would be preferable.” -- George Ade
“I guess walking slow getting married is because it gives you time to maybe change your mind” -- Virginia Cary Hudson. Okay, this one is definitely not recommended unless your friend has a good sense of humour.
To the bride and groom, love and congratulations from an old friend.
Let an old family friend send his (her) love and congratulations to the bride and groom.
I (We) wish you many happy years together blessed with health, success, and love and filled with all the best that life can hold.