Step 1: Scoop everything out of your pocket into a dish or tray.
Step 2: Let the dish or tray go through the scanner.
Step 3: Scoop everything back into your pocket.
I don't understand the difficulty here.
I wonder what the guy does if his car keys are still in his pocket when he reaches the checkpoint.
Charity? You mean like the TSA itself? They just need to make a tube into the box of "prohibited" items, where there's no accounting or auditing anyway.