Walkie Talkies (we have three)
I also hope my cell phone works in the park.

Hot Dog, Hamburger, and marshmellow cooker sticks to do over the fire. I
just looked at mine and they're all rusty. Thank you Hawaii.

Any Egg Hunt Stuff you want to give away during egg hunts.
We can do more hunts if we actually have more than the eggs. I'm sure the
kids wouldn't mind.

Bicycle helmets if you bring any bicycle and you're under 16.
 

All the stuff I've forgotten. ;-) I leave Hawaii in less than 24 hours.
Love, Lois