No helium needed to fill balloons for parties.....just vinegar and baking soda! I NEED TO REMEMBER THIS! this is important since helium is not a renewable source and is in such short supply - - no, I'm just cheap ;0)
no helium! just fill a water bottle 1/3 full with vinegar with a funnel. With another dry funnel, pour baking road into balloon (about 1/2 way). Cover top of bottle with balloon. DON'T LET BAKING SOADA SPILL INTO THE BOTTLE. Then lift balloon and let baking soda fall into vinegar. Mixture will fizz and expand balloon!