their destiny

Although their non-metallic envelopes will mean that these will probably achieve slight net negative buoyancies sometime tomorrow morning their relatively high temporary irretrievability would have made them perfect for a game of pop-the-escaped-helium-filled-balloon-by-throwing-up-a-bit-of-Blu-Tac-with-some-drawing-pins-protruding-from-it, though only after all the three-and-four-year-olds beneath had vacated the area. Given the small size of the balloons they might not have been able to lift sufficient ribbon to allow one to whose top was affixed a single drawing-pin to rise all the way to the ceiling yet remain retrievable and vaguely controllable.