would you pay for someone to provide food for a kids party? not an organiser, just the food and goodie bags and decorations, then you organise the decorating, games and serve the food yourself.
The food would include the cake and healthy alternatives to the normal party junk food. Homemade jelly and icecream, cookies, mini pizza, dips with cut up veges and crisps etc
Kind of like a party in a box, the stuff all gets delivered and you do the rest yourself. It could include themed decorations and plates, cups and cutlery, ideas for party games as well as themed goodie bags for the guests.