Hi Abi! You could incorporate some beeswax into the recipe, either completely replacing the sunflower wax or combining the two. I haven’t tried it out to be sure of exact amounts, but if you add beeswax to the recipe, you should add more oil so it won’t be too firm. You’ll have to kind of experiment with amounts and then if it’s not how you like it, you can just melt everything and add more oil/wax as needed until it’s just right! :) Instead of shea butter, you can use mango or avocado butter. You could also use cocoa butter or kokum butter, but since they’re much harder, you would use a bit less or add more oil to the recipe to help compensate. Good luck with your lip balm experiments! :)