I had an interesting show over the weekend. The birthday boy loves vampires, so I was asked could I do the magic as a vampire. Of course I could. I wore a tux, and a long flowing black cloak, and adjusted my patter. I brought a werewolf instead of a taking dog, and painted the faces as vampires, wolfmen, ghouls, skulls, etc.
On Wednesday I am doing a mad scientist at a party. In the past I have been asked for pirates. It is all possible. If your child has an interest, why not ask whoever provides the entertainment if they can accommodate that interest.
I know I will always do my best. Sometimes it won't be possible - I don't make a good fairy, for instance! But if it is possible, it could be the touch that turns a good party into a party your child will remember into their childhood. And isn't that what we are aiming at for our children?