Thank you for these ideas. Most of you seem to grip the problem that I dont wantto poke a big hole in the kilt, but I prefer to not alter the badge. I like the magnet idea, but the bolt would still require alteration. I would say its about a 3/32 bolt about 1/4 inch long.

I guess I could have a 1/8 hole stitched in the kilt, and it would not be too obvious; but that's a hard thing to do