I was watching the Tour a couple of days ago & saw footage of a sprinter crossing the finish line first while making runner's sprinting motions with his arms. It was pretty funny (and impressive).

The one time I've won, I only raised one hand
My training partner is trying to teach me how to go no hands- not for winning, but for stuff like clothing adjustments, eating, stretching, etc. that you may want to do while training/racing. So far I can only coast for a few seconds. I start to feel wobbly when I start pedaling, but I'm going to work my way up to it. He can actually make turns and go over bumps with no hands. I'm always tempted to push him over when he does it... but that would mean finding a new training buddy!