i have a dent in my tank, spoke to a dent guy who was doing my friend's car, and he said that the steel in tanks is usually too thick to pull out. Don't think he was a motorcycle specialst though, and he didn't think he could fix my tank as he thought the tank opening was too awkard
Judging by the comments made on the video it seems that this whole thing is a hoax to some extent.
We have dry ice for sale right next to the milk in our Hy-vees (Big chain grocery stores in the mid-west) around town lol. And it is super cheep. I have a car that's worth 1/4 the value of my FZ6 lol maybe I'll try it on that sometime.