This is by far my students favorite day of the year! I set my room up like a wedding, and they are given 20 minutes to plan the entire thing. I give each side a bin with items (white plastic table cloths, bubbles, a suit jacket, ring pops etc) and they have to get the bride and groom ready for the big day. With the last 20 minutes, we have our wedding ceremony. I added an extension project where they use the next day, or for homework, to create a scrapbook for the bride and groom with all of the memories.
Let me know any questions, I made this for my class then decided to add it here for anyone else who may want to use it. I will also add the editable version if you want to make changes.