I just cut the 2 threaded bars off the back and stuck the badge to the grill with resin!
However, the red bit of the letters is actually a sticker of some sort, and 2 of mine have fallen out somewhere. If I was doing it again if probably fork out the money for a genuine badge.
However because I bonded my badge in place I'm going to steal the wife's nail varnish and colour it in again!