Donation Cards on tables in honor of your guests in lieu of party favors. Sponsoring a charity on your wedding day is a nice touch, especially if you are personally connected to a charity.
What is a good way to save on your wedding cake? Fantasy in Frosting suggests for the main cake, "Opt for a smaller design that serves about half of your guests for a nice look and have the rest of the amount of cake needed in the kitchen."
You can have kitchen cakes with the flavor and filling of your choice and when it is plated, it looks just like the main cake! Fantasy in Frosting also notes, “your cake should not look too small for the amount of guests or for the room where the event is held.”