Bowl Making

[jennifairy11.livejournal.com]

Hello everyone, I need some ideas. This is the best community I could come up with to post this question but if you have a better suggestion please let me know.

Today at work I found an old, broken globe that had been sitting on top of some lockers for probably longer than I've been alive. I decided to rescue it with the idea that I would make some neat bowls out of it. Basically what I have are two hollow half-spheres, each with a hemisphere of the earth on it. They are made out of cardboard; think cereal box, but thicker. I would like to make the inside of them food-safe in some way. Not necessarily liquid proof, I'm thinking more of a popcorn bowl or a fruit bowl type thing. Do you have any ideas of how I could achieve this? I might mention that one of them is fractured, so I'll have to glue and/or tape it together from the inside before I proceed, so any sort of clear coating probably wouldn't be the best idea. I tried to be creative but so far I haven't come up with any feasible ideas. Also, if it matters, there is a tiny hole in the bottom of each hemisphere where the axle used to be, it's probably about this big: O (yes I know that's ambiguous depending on your computer, it's just small). So guys, any ideas would be very appreciated!

Thank you!