Any solid hard to handle wax like shea or cocoa butter can be warmed up and then have some runny, or at least an easier to handle, oil/wax mixed in with it. Surprise surprise I will recommend jojoba as the something to add in

but you can use whatever you want - it is all a bit try it an see, plus what ratio works for you in winter and a chilly bath room would probably be too runny and messy to use in summer, so remember one fixed ratio of quantities will not be right for all locations for all year. Plus once you start mixing things up it's more of a chance for things to go off, so don't make big quantities, just go for small combinations.....
I usually hate posting skincare recipes, what someone loves someone else will think it too oily, (except for jojoba

) but here is one with shea butter.... this is actually one I've been using for years, I see shea, I make this....
Aloe Body Butter Souffle The mixture produces a viscous, creamy substance that will blanket the body with a soothing sensation, which will restore the skin's balance.
Ingredients: Half a cup of aloe gel or juice; 1 cup of shea butter; jojoba or oil of your choice; optional white clay, rose powder or sandalwood powder, or similar.
Compounding directions: Place the shea butter in a glass bowl, or if you're really clever, get a wide mouth glass jar and do all the warming melting and storing in the one jar. Slightly warm the shea over hot water until it is soft. While stirring, add the aloe juice or gel. Next, add a few drops of oil. While stirring, slowly begin to add the optional clay/powder to the mixture. Keep in mind that you can adjust the consistency of this recipe. If the mixture is too thin, then add a little bit more clay and if it is too thick, add more aloe or oil. Now you are ready to fragrance the mixture or you can keep it unscented.