The church would look like Cloud City and Lobot would do the reception and show everyone where to be (he will merely look back and point to the way). As the wedding begins, the bride would make a hole at the church's door with that flame thing, stormtroopers would come in, and then she would come in, as the ANH Vader theme is played. The priest would look and sound like Grand Moff Tarkin.
"In a way, you have determined that this is going to be your wife. Now, I have grown tired of asking and this will be the last time, do you accept this woman as your wife?"
"I... I..."
"Do you prefer another wife? A military wife? Then answer the question!"
"I do..."
"You see, he can be resonable. You may proceed as planned and kiss the wife"
Wife: "What? You didn't ask me!"
"You're far too trusty."
My future mother-in-law would be the Emperor.
"Good... Good... I feel like I have not lost a daughter... but gained a son... It is your destiny... Yes... I can feel your anger!"
The wedding cake would be in the shape of Han Solo frozen in carbonite. The band playing would be dressed as the cantina alien band.
I can go on and on all night with this joke....