Any paint thinner will work. Put some on a cloth and scrub away. Be careful not to get a lot on your fingers as it is very drying. good luck!
How Do I Get Paint Off Of Stained Wood?
Try what is called oops it should take the unwanted paint off.yes you can by it at either place but usually walmart is cheaper. If you can't find it then ask somewhere in hardware they will know where and what it is.