ok magicdiscoman in the hizz ouse, you can tell I'm out of touch can't you.
that said make sure most of your tricka are self workers or have the dirty work done at the begining of the trick, make the props big and visual.
cut and restored rope and professors nightmare / optical ropes and a change bag that has no bottom, ie an unziped version will go down well with kids and adults.
if your going to do a sucker trick like a sliding die box / pitza factory then do it on an adult and have a kid use a magic wand and a farting noise to mess up the adult, also a colouring book with the kids pulling colours off there clothes or even better the adults will go down a hoot.
a prediction effect with a change bag invilving a few adults and the birthday boy getting all the prizes, especial if before hand youve primed the adults is a real winner
and finaly plenty of side gags, bouncing hanky, wand through ear and spike through fake toungue.