Typically these two things do not mix, but my twins are now six and they now have completely different tastes. One of then just loves frogs and wanted a frog cake. Of coarse there's no frog cake pan, so I have to completely free hand it (and by free hand, I mean trace the shape and then fill in all the lines myself) I think I'm getting better at it.
Now the other one is pretty fancy. The loves fancy things right now and told me she wanted a wedding cake. A wedding cake! Now I'm nowhere near wedding cake talent, but I did my best and I think it turned out pretty nice. I used fondant for the flowers for the first (and last) time. Fondant tastes like crap, and therefore will never find itself in my kitchen again!