Made some discs to reinforce the inside of the helmet where the mic tips mount - boy is this some thin plastic, feels like a board game insert:
Repainted the inside of the mic tips off-white to match the props:
They were then given a clear coat of spray paint to seal them up.
Afterwards I made another 'doohickey' for molding the mesh I received from Tony:
Mic tip mesh was then installed (I put a bead of E6000 on the lips of the mic tips beforehand):