Good Idea

This is a roll of butcher paper. You can get a fairly large roll at Sams that will last for a while. We use this paper to paint on or use crayons/markers. Also, we use it under our clay molding, pumpkin carving, or any other messy craft. It works great as art paper and many times I'll line the table and tape it down. It keeps them busy for a good amount of time and makes clean up a breeze.
Any good/helpful ideas for keeping kids busy? I'm trying to brainstorm a few new things to prepare for them before baby comes so I can have hands off time.