Hi I can't answer all your questions, but make sure you ALWAYS run your recipe through a calculator just to make sure. www.soapcalc.com is one. I've used condensed goat's milk in a crock pot and it worked out well, just add your lye to your water portion and stir until it's dissolved, then add the milk portion AFTER the lye solution has been added to the oils. I don't know about powdered, but I'd imagine it's something similar. Since it's going to get hot, it might smell like ammonia and/or turn orange, but the smell will fade! I don't know about crayon chips, but I used food coloring the first time and it was fine, just faded quickly. Don't know about EOs either... lots of help huh? You can use any recipe for CP or CPHP. Good luck!