There is something about painting directly onto a wall that feels so daring and wonderful! It's like being a kid again, knowing that you aren't supposed to use those crayons on the wall but it just seems like the most fun thing to do. So when our kids got naughty with some markers and also needed a bit of a room makeover, I took full advantage of the situation and painted murals in each room, not only hiding marker stains (Sharpie of course) but "wowing" them with their new bedroom artwork!
After Thanksgiving dinner, my mother mentioned that she wanted something interesting on the wall in her dining room. There was "too much white space" between the windows. 20 minutes later I found my dad's brushes and paints. My brother was in a bit of shock, as it happened so quickly (he likes to think these things through for a very long time). My dad was too overwhelmed by grandchildren for it to sink in, and my mom was mostly entertained by the whole event.
If I have an opportunity to paint trees on someone's wall, I don't wait for them to change their minds! I like the mural in their dining room. With the lacy curtains it reminds me of something from a Scandinavian folklore storybook.