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Hi y'all, I wanted some advice on vellum balloons being attached to a string then popping (see reference below). So I can do the whole pressure thing and attach it to a string etc, but I wondered how to make the balloons automatically float upwards without just reversing the gravity. I don't want to just use a force to push them upwards, as it would look odd when they pop and don't fall to the floor. Any advice or example files would really be appreciated! Thanks, James