Cake artist Michelle works some animal magic with a life-sized Koala cake that looks like the birthday boy himself. Hanging from a eucalyptus tree support, the cake will include 12 layers of vanilla sponge, finished with edible fondant fur and fluffy ears. Molly supersizes her sponges with a fast food cake, complete with a sweet take on a burger and fries, and chicken nuggets sculpted from flapjacks. Nastassja pushes baking boundaries for an elaborate four-foot-high anniversary cake inspired by Roman columns, adorned in over 200 fondant motifs.