Has anyone ever made a white chocolate version of either of these icings? If so, could you please share the recipe you use Thanks so much!!!

Yes, it's delicious! I just melted and cooled some white chocolate and mixed it in after all the butter was added. I just eye balled it so I can't tell you how much I used, it was probably about 1/3 the amount of butter if that makes sense! Hopefully someone can chime in with a more exact recipe!