Desighned by me, TogrutaJedi, but somewhat accidentally. I folded the form at 3:34 and tried to throw it away but realized it flew. I then refined it to this form.
It flies, but technically backward...
Use foil paper for the best effect.
The first thirty seconds are silent, but otherwise, the sound needs no explanation.
I can't say I designed this since the design is so basic; it's a similar situa...