That cake topper is cute, but likely made out of something edible. Here is a link to a website for something similar but made of clay so it is something you can have the wedding day and keep for later:
(I found that website after seeing a BDW bride's topper she ordered from them) I plan on using Mrs. Clay because it will be a way to incorporate our dog (my fiance is very bummed that the dog can't be there for the wedding).
Though I plan on ordering a Mrs. Clay cake topper as a surprise for the fiance, I plan on just putting it beside the cake on the table. I think cakes that just have floral decoration are the prettiest.