Ha......my daughter is having a carnival theme for her birthday and wants a clown! I have already checked with all parents of the children coming and all see no problem with their children being afraid.......at least I hope not!
Have a friend dress up- and do some face painting, and magic tricks or call CSM and ask to speak to the theatre dept- and see if there are any students looking to do one for a project. (call the HS too.. )
Also- PM me with the dates and info of the party- and what price range you are looking to pay- I know alot of talented seniors and college students who would be wonderful- and would do a great job.