Slaying Dragons - Pity They're Not All As Easy To Vanquish!

My son's 7th birthday cake...

He's currently enamoured of dragons...   Last year it was dinosaurs and the year before Peter Pan and pirates...   I wonder if he's going to be a tilter at windmills and slayer of dragons like his mother?

I hope all his dragons are as peaceable and docile as this one - fierce on the outer and sweet on the inner...