A.C.
Food ideas-fruit snacks! I usually just do cake & ice cream & a pinata instead of goodie bags. You could do cupcakes & stick a fruit snack of either kind (you can find both) on top-add some sprinkles before you throw on the fruit snack & you've got cool cupcakes.
I don't normally do games, but we had a one-handed birthday boy this year (broke his arm a week before his bday) & I did one-handed free throws & just let them run around.
You could get some foam visors from Walmart & let them decorate them w/stickers, markers & whatever else you can think of. They can make their own summer superhero visor.