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I haven't decided whether this a clever way to solve parking problems or just a feel good advertising campaign.... maybe some of both.
Hey Guest!
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> Here's How << 
Or, play "pop the balloon" like you do with bubble wrap.Not only that ,if they are tough enough you can use them as bumpers between cars
I don't think you can manufacture helium as it's naturally occurring element.....
helium... not hydrogen