This is a truly easy freebie. ColorStrokes (formerly ColorSplash) is doing a bit push for its new version. So as a nice little bonus, you can get this awesome app for free right now. I have this app myself (and for iOS) and love to play with it. I think I actually take pictures with the sole intent to use ColorStrokes on them. So, just do something cool for yourself, grab this freebie, take some pictures and have some fun.