David OReilly Productions
From the Audiovisual Identity Database, the motion graphics museum
Background
This is the vanity card of Irish artist, film and game maker David OReilly, used once on the Adventure Time episode "A Glitch is a Glitch", which he wrote, directed, and animated himself.
(April 1, 2013)
Visuals: On a gray background, we see the rounded square with a line across it. Then, a circle appears with a duck inside, and the words "dAVId O'ReILEY" in some strange font appear.
Technique: The circle, the duck, and the words appearing.
Audio: A beep and a quick synth whirr.
Availability: Seen on the Adventure Time episode "A Glitch is a Glitch".