The photos below show orbs that I photographed in an indoor location on June 6, 2016 and June 7, 2016. Both show a strange stripe detail on the orbs. Appearing against a featureless wall, the orbs had an apparent size of about 7 inches.
On June 7 I also photographed the orb below, which seems to be making a sharp right-angle turn. There were no insects observed nearby, and insects never make turns this sharp.