You can't get those things into a Kangol? Or clip them to your glasses (or fake glasses)? I would do that, the whole shirt collar thing is a shot in the dark, especially if the mics are cardioids.
Drums at 3 feet away is going to give you the most extreme situation for transient high level SPLs (think 125dB plus for bass drum kicks or a hard snare/tom attack). If you see occasional clipping, I wouldn't sweat it. Besides, the MT puts out 5V thru the mini as plu in power. Just stand a bit further back away from the stage, away from the stage lip.