DIY chalkboard paint

You can find chalkboard paint at almost any crafts or art store or home center. But if you're longing for a hue that's not available on store shelves, concoct your own. To create your own custom color of chalk-ready paint, simply combine 1 cup latex paint in your desired shade with 2 tablespoons of unsanded tile grout. Use a paint stirrer to mix. During application, gently sand the dry layers of paint between coats with 150-grit sandpaper. Apply several coats for best color.

Ideas: http://www.bhg.com/decorating/do-it-yourself-magazine/easy-chalkboard-ideas/?sssdmh=dm17.553931&esrc=nwdiy101211&email=2408315816#page=1