Encourage Kids to Rate Their Effort and Outcome

As a teacher, all day I am approached by enthusiastic kids parading their papers in front of me, seeking my approval for their work. I humorously refer to it as "the paper parade." One day, in a flash of genius ( haha..sometimes in the teaching world, we call those moments genius!!) I told a student to ask himself how he thought his work rated. I modeled the questions I wanted him to ask. I held the paper up, gazed curiously at it, and asked these questions of myself, pretending to be a student.
Is this my best effort?
Does my paper look like the sample paper? ( can be adjusted to rubric in older grades)
Did I write my name?
Is there anything I can do to make this even better?
How many smilies does my paper deserve?
I encourage my young students to self-evaluate and begin to recognize the difference between work done with effort and work completed carelessly. They are thrilled to determine the number of smilies and write their rating on their paper, with special markers reserved for this process.