Just wanted to let you know the magic concoction wasn't so magic.
About 70% of the load washed clean - namely towels and such.
But Tanner's clothes are still obviously marked with crayon...I see some more scrubbing in my future today.
I did read somewhere that WD40 takes crayon out. But I have to say that will be a last resort. Even if it did work, I can't imagine getting that smell out of the clothes!