Children's entertainment suggestions/recommendations in Melbourne?

Hi ladies,
I'm organising a birthday party for the children of our mothers group and was looking at hiring some form of kiddies entertainment (pirate, fairy, face painter... that sort of thing) and was wondering if anyone had any recommendations for what worked well? We're in Melbourne south east so if you know anyone who's good (and not too pricey please also let me know!) There will be about 17 kiddies of aged 4 and 10 under 2.5 so 27 in total!
Thanks :)