number cake toppers on cakes by Cuteology Cakes (left) and D Koeken Bakkers (right)
http://www.craftsy.com/blog/2013/07/how-to-make-a-fondant-number-topper/
below, Number cake toppers and cakes from Angel Contreras on Flickr (left) and from MND Cakes.com (right)
Pink Cake, http://www.flickr.com/photos/angelcontreras/4839582316/in/faves-cakesbyliz/
Below, number cake toppers from Pinterest (left) and Torte Tante (right).
Perfectly perched flat stylisedf number toppers: http://tortentante.blogspot.pt/2010/09/buchstaben-und-zahlen-beine-machen.html
http://rosebakes.com/how-to-make-fondant-number-cake-toppers/ (fat numbers)