First of all, you will need the book You Are Special by Max Lucado. Are you familiar with it? I picked mine up on half.com for 99 cents but I believe you can also find it at Wal Mart.
If you aren't familiar with the book, listen to it here.
We prepared for the activity by purchasing gold star stickers at the dollar store and my partner cut out black dots about the size of a quarter (any size would do). You don't even have to do that, regular stickers would do just fine.