Two impressive videos of similar weird objects

Both of these videos are fairly startling, and both seem to show odd-looking objects with protrusions and no definable shape.
Both objects make no sound, and are traveling far too quickly IMHO to be 'balloons', research or otherwise. Anyone who has ever seen a balloon (and as someone 65 miles from the Albuquerque International Balloon Fiesta, I've seen more than my share) knows that balloons don't move very quickly, even in high winds. Nor do they show any sort of lifting surface such as wings or rotors.
The first and shorter vid is from Germany this year, and has the added bonus of some other, smaller spherical objects seeming to buzz the primary whatever-it-is (shown in the slo-mo):

And the second from Canada last year (language warning!): (Oakbay, Victoria, British Columbia)