interior decorating (crown molding type of stuff)

[mostsmooth]

i have a room to paint
normally i would tape off the ceiling and paint the walls.
today i was thinking about crown molding.
crown molding would be way out of place in this room i think though. then i started thinking about using 1/4 round where the wall meets the ceiling. one huge benefit would be painting would be much easier as i am suck at painting.
i would paint the molding probably the color of the wall(and then nail it up).
has anybody ever seen/done this or am i totally retarded?