Bottleneck

Bottleneck (minor) by Stone Gargoyle

"He eats like he's got a hole in his neck."

The hero possesses a valve in his neck just above the sternum which he can control, opening and closing it as necessary.
The valve can act as an air vent to prevent asphyxiation or as a place to put a feed tube or bottle which he can use to be fed nutrients and food. This allows him to eat and talk at the same time, or use breathing apparatus without obstructing his face.
This gives him a +4 to save vs. choking (the obstruction can be pushed out through the valve) and +4 to save vs. airborne toxins (the valve acting as a filtration vent against toxic gas).
The hero can also use the valve to talk when his mouth is gagged, but this will sound like the Partial Speech of Mutant Animals- While everything he says may be understood by friends and family who have heard him talk by this method before, strangers may have difficulty.