Toothbrush bristles, so much better than wire. Certainly cheaper. Easier to glue in. And they’re more forgiving if you bend them.

And they give the miniature a little extra zing. I think with the gauge of the bristles they also give a better sense of scale to the mechs. Whip antennae are not exactly small, so when you see them on a humanoid figure, it makes them look as big as they’re supposed to be (battlemechs are about 10-15 meters tall)

I’ll clip these down a bit once the glue sets. Too cool!