refilling helium balloons?
my son received "2" and "4" mylar balloons last month at his high school track & field senior night. my brother-in-law, who's a photographer, is going to take photos of him for his graduation announcements. it seems kind of wasteful to re-buy such balloons for the photo shoot, so my question is this: is it possible to refill the helium in the balloons?? is there a place i can take them to that will do this? (i am willing to pay.) thanks!!
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