Not done it myself, but I have seen this done on the DIY channels. Especially in older homes where the wood flroor was worn, but they didn't want to cover them entirely up. They painted a rug under the dining room table to get the look they wanted. Also saw one show where they painted tiles on the floor in the kitchen. Black and white checkerboard painted on the floor. They did put sealer on it to helpo it last and not scratch off. I'm sure you could google it for info.