"Thumb Smasher" 6" x 6" Well I made a big mistake Saturday morning at the camp out. My thumb decided to act as a stop on the LP tank cage. The result was a smashed right thumb. I have hit my thumb with a hammer before. This beats a hammer whack, hands down. This was barely scratched out in pencil. The throbbing was so intense, that I had to stop. I lined it in with a Sharpie on Monday.