H/O and A/O both deadly. As an explosives guy, I have seen this done. You can not move or touch the balloon while filling or once filled as the dryness of the gas will cause static. Latex also has some piezoelectric properties, so it can go during the inflation process itself. The fill and detonation must be done from a remote location with no physical exposure to the balloon at any point in the process. We did this at the explosives range under controlled conditions and AFT licensed personnel. Including the A/O hose, which was destroyed during the test, the day ran us about $1600 for all expenses. A bang yes, but at quite a few bucks. Regular Mag/PerCl explosives give a much better result without the danger. You would of course need to be licensed and insured, and at an appropriate range to do any of this.