A success! I think all had a good time. There were 7 kids total with parents. We met at the playground and played. Then we had pizza, played some more, had cupcakes and ice cream, played some more, opened presents, and played. It was a great place to have it - I didn't have to plan anything at all to keep the kids busy. I did splurge and bought ice cream for everyone at the stand across the street - $23 for 14 ice creams. There was no way to bring any with us in this heat (90 degress plus). Stupid me forgot the lighter, so my poor little boy had to pretend to blow the candles out (doesn't anyone smoke anymore?? not that I'm complaining!). He took it rather well.
Pizza: $20 for 17
Ice cream: $23 for 14
Drinks: $.88 for a can of lemonade, also brought water and 2 bottles of soda for $2
Paper goods: Used from stockpile, cost was neglible
Candles: $.68
Balloons: $1.49
$48.05! I can live with that. It was a very good time.
Party #2 tomorrow: Bachelorette party. No expenses for that except dinner at a casual restaurant.