Sounds cool!! I just usd my thumb to do "prepare" mine - i was told just to put my thumb just inside (went to about the first knuckle) and slowly stretch until it starts burning a little then hold it. I think for about a minute or so?? i was told to do this a few timesa day with my second, and i birth my second son with not even a graze... a 8lber

Good luck finding it though!! Maybe online somewhere??