Unless your are fortunate and were planning to send a very large gift to the lucky chosson/Kalah, you can take out your phone and transfer $500-$1000 on Zelle (or one of several similar instant cash transfer systems) in less time then it will take you to read the OP. No need to reinvent the wheel.
P.S. Obviously, the young couple need to have registered on the same cash transfer network but that also takes less time than it takes to register on Macy’s Bridal Registry.