This is a Mother's Day card for the next project.  First we colored a piece of paper with crayons.  We had to make sure it was completely covered and the color was pretty dark.  Next we painted over the picture with a mixture of black paint and soap.  We set that aside to let it dry.  After we created a picture to form the front and back of the card.  We traced over the image onto the painted construction paper.  After we scraped off the paint with a large version of a toothpick.  This produced our design we created using the crayons and brought out those colors again.  

As an extension activity, I think this would be a great activity to reproduce for holidays or special occasions.  Students and create snowflakes or leaves using these procedures and can be hung in the classroom to motivate students and improve students' self-esteem.