Satisfying Sound Effect when Stacks are Complete

 I think one of the less appreciated reasons of Minecraft's popularity is the somewhat addicting sound effects of blocks breaking, dropping, and being picked up. Therefore, the game would become even more satisfying if a sound informed the player that a stack of 16, 32 or 64 items was complete, adding to the sense of accomplishment. It could also serve as a reminder that your inventory may be full. Of course, as with all sounds it shouldn't be loud or annoying, just a slight change to the default picking up sound.