A click-ish sound generated completely from scratch with image-line's harmor; processed with camelcrusher, fruity waveshaper, and fruity parametric eq 2.
I was playing around with a mic i borrowed from my school when this little plane flew over my house. I quickly opened my window and recorded this sound. You can also hear some birds and kids playing (i live near a school). The sound is heavily gained so you should hear some noise.
A short soft whistle suitable for "onhover" mouse events when constructing various menus. Created using audacity, by applying a couple of filters and changing a pitch of a short whistle - my own whistle.