I know that personalized wedding cake toppers are quite popular, and I came across a couple of artisans on Etsy that have really amazing ones. I have a soft spot in my heart for items sculpted in clay, as I had a miniature dollhouse when I was younger, and I was always crafting something for it out of clay (food on plates, roses in the garden, etc.) I know the painstaking detail with each tiny piece of rolled clay that goes into this stuff, so if this is an item that you would be interested in, please be sure to stop by their Etsy shops and take a look around. The topper is sculpted into a likeness of the bride and groom, taking the dress and tuxedo into account, as well as the flowers, and any other detail that you would like included.
From Lynn's Little Creations
From Ali Clay Creations: