I haven't made it though. So many good ideas.
My girlfriend from High School used to call those fancy cakes from the grocery store ‘Crisco Cakes’ - because the icing was usually made from that.
She laughed at them - but I think her wedding cake was probably iced with the same, because that’s how they did things back then ;-)
https://www.crisco.com/recipes/buttery-cream-frosting-1329