Just on a whim and a prayer, I soaked part of the load this morning in HOT water with Borax, OxyClean, Felnaptha, some Ecos laundry detergent, and a bit of GreenWorks dish soap. So far, it looks like the crayon may have come out.
I haven't been able to really get into the clothes good and examine since I still have crayon all in the dryer, and no wd40 here. Fingers crossed that they came clean.
Now, I have to tackle the diaper laundry. The really bad part about that is that most of the diapers in there were ones I had borrowed from my SIL and she will be
if I can't get it out. I'm probably just going to have to buy the diapers from her.