Came across this article on a music blog and spent the better part of an hour reading and listening to all 40 of these sounds. It is so cool to hear about the history behind some of these sounds which you recognize instantly but (in my case) hadn't really thought much about before.
My faves: #9 Reverse Tape, #13 Organ Bubble, #17 "Eugh", #27 Vinyl Scratch, #29 Gated Reverb Drum, #36 Sample stutters, #38 Opening lo-pass filter,
Most interesting: #33 Orchestra Hit and #37 Amen Drum Break
Honorable mention to Hand Claps, Vocoder, Auto-tuned vocals