$55.99 (2 Pack) Slate Krylon CHALKY FINISH Chalk Spray Paint - K04103007 724504041030 | eBay
Krylon Black Latex Chalkboard Paint (1-Quart) in the Craft Paint department at Lowes.com
Krylon Chalky Extra-white Base Water-based Chalky Paint (1-Quart) in the Craft Paint department 
