Check out Erode It, a great Blender add-on developed by CGMatter that allows you to apply procedural erosion to any 3D model in just a few clicks. The add-on features several useful operators, including Bevel Checkbox, which enables you to apply a randomized bevel before adding the erosion, Erode It, which applies the highly customizable "Erode It" modifier, Apply, for applying the procedural erosion, and Copy Erosion, which lets you copy the erosion settings from the active object to the selected object.
