Thanks for the replys. I'm looking at some Dover mini-coloring books as possible favors, they are cheap, and really cool, that and some decent crayons for favors. I'm thinking I might put goody bags into the pinata to ensure an even distribution of treats. Anybody done that?
Sadly, while I'm very into pirates, we have pirate-haters on the guest list. Now, Princesses and Ninjas... that would go over better. (sighs) Really, the 9 year-old boy is the toughest sell. The 4 year-olds are easier, they are not so "No, I'm too old/that's too girly." But because they are family-friends, gotta invite both boys, and I really want to be sure to invite them, especially because I don't want to invite just 1 boy, YK? Still taking notes.