AutoSmear is an addon that allows you to well, automatically smear objects! In the addon you will get a new node group that has curved smears and duplicates and a node group that has straight smears. You also get some quality of life additions like cleanup tools and a reset smear button which are in the tools section of the n panel. If you'd like a more detailed explanation, you can watch this video from my youtube channel (and maybe drop a sub while you're at it):