I'm going to experiment with lotion bars this week. I've never made them before but they sound pretty awesome!
I got these great molds on amazon
https://smile.amazon.com/dp/B00NN224W4?psc=1&ref=ppx_yo2ov_dt_b_product_details and just tempered some cocoa butter today. Going to figure out which butters/oils to add next. Read a great page on the science behind why the temperatures are important in tempering CB that was cool, diff. temps give diff crystals, etc..
https://devilsfoodkitchen.com/2016/07/02/food-science-cocoa-butter/
So basically, stirring often, melt it slowly to 113 F/45 C, cool it slowly to 85 F/ 29.5 C, and then bring back the temp to 89 F/ 32 C. At this stage I put it in ice cube trays and chilled in the freezer for a few minutes and then the fridge for a few. They popped out easily and I now have shiny, tempered CB to use.