We had a purple and black crayon melt in the dryer drum. I had brain surgery 3 weeks ago and freaked over this. One of my 9 year old twins harped at me for several minutes to use the Magic Eraser.
I was frantically the web for tips. Finally I agreed to try it and in 15 minutes the entire dryer drum was clean. I used 3 erasers......... we love them even more now