USASEF: Candy and Ergonomics

This challenge, from the Human Factors and Ergonomics Society (HFES), was to unwrap a piece of candy using only one hand.

How would you unwrap these?

I unwrapped the Hershey kiss, and found it easier to open one-handed than to photograph! (hence the blurriness).

Apparently the M&M's were the hardest. I asked the girl what the trick was, but she just smiled and said she'd seen people try several different methods.