For things that can have a perceived non magical copy, in the case with scarab of protection and rabbits foot, I don't really mind. Is when space in the palette is rare and things are duplicated with a description and name change that adds nothing, like the case of the mw sling and sure shot. They were effectively the same, where there is more of a difference in the foot and scarab, one is a superstitious token, the other is enchanted.