Outline an object with OnMouseEnter()

hey guys.
working on a project, and i need to outline an object when my cursor goes over it, and then un-outline it OnMouseExit(). my only guess is to somehow change the shader to toony outlined and then back…please help!

As another option, duplicate the geometry in your modeling app, scale it slightly larger, flip the normals, and apply the shader of your choice to the new geo in Unity.

Enable and disable the outline geo in your OnMouseOver() function.

thats kind of confusing? can you explain it in more detail?

He said to make a double of your object. You scale it a little, so it is bigger than the original. You flip its faces and you change its color. Added to your original smaller object, you achieve a cell-shading like effect.