Sara the font enabler provided us information on the plethora and variety of chalkboard fonts available.
Here are some really cool chalkboard brushes I found.
Just add these using your ‘Load Brushes’ dialogue. They are very large brushes, each on the order of 2500 pixels. Once a brush is selected, resize it either via the Brush Presets dialogue or by using the left bracket key, [.
Here is a color sampling of the brushes, resized and reoriented using my brush presets dialogue.
These are really fun for adding some chalkiness to your pages.
Paper is from Studio 68 Chalkboard Papers.
Chalked alpha is from Val C Designs.