Ideas for recycling water bottles?

[kristij.livejournal.com]

Hey crafty ones. I need a project that children can do reusing plastic water bottles. Anyone have a tutorial or any good how to's for such a thing?

A little background: We are participating in a KaBOOM! build and we need a side project for the kids to be working on that will use the hundreds of water bottles that will be produced during the build day.

Thanks!