JasonQ

I couldn't do the dart because I have only shot at it, and the dart might either not hit the balloon right to pop it or could hit it just right but still not pop it. I guess I'll look into solvents; thanks for the suggestions you've given. -Jason

...As I said before, I cannot access the balloons with a needle because I can't get that close to the balloons. This is why I'm going to hold a syringe way above the balloon and drop some acids on it. -Jason

Maybe if I gave you some more info it would help determine would substances would be good. I'm entering a robot in a science olympiad competition, and it needs to pop a few balloons that aren't easily accessible; a simple arm with a blade on it wouldn't work. What I was planning on doing was having the robot hold a syringe over the balloon, squeeze out a drop of acid, and the acid would pop the balloon. As I said before, the balloons are stationary and have nothing but air in them. Any other suggestions for acids/substances I could use? -Jason

No, my balloons will not be filled with helium. -Jason

Yea... That's why I asked in my original post if they were safe. Do you know of any safe chemicals/acids I could use to pop the balloon with one or two drops? Thanks, Jason

Are those solvents relatively safe? If I got some on my skin would it eat through it? Thanks, Jason

Does anyone know of any acids that are pretty safe to humans (not very dangerous to skin) that can eat away a small hole in a standard party type balloon and pop it? Thanks, Jason