This was for the Pastors wife's birthday, not First Communion, but the category fit better. Anyway I baked a 9x13 cake and a larger cake and stacked them. I used buttercream icing. I made the rosary out of fondant. I just rolled them into little balls, and I also cut the cross out of the fondant too.It was an o.k. project, I am still learning this craft, but it is so awesome to make them.