I agree with Woodi.....PKO behaves very much like CO, just not quite as drying IMHO.
You should be able to use it up. If you want to have a sub for palm that's lovely, go to the grocery store, pick you up some lard, and get some Crisco or better yet, some of the store brand with trans fats. Use those in place of your palm.
Nice, very luxurious (and cheap) soap.