This is really good! Better than mine :)
What's the yellow waste doing in the top right?
Also, maybe you could combine the two machines that cut off the left edge.
This is pretty cool! I don't see it becoming a full game in itself, but perhaps a minigame inside another game. And it's very neat on its own. Good job!
My only suggestion is to give better instructions on how the controls work, specifically on how to get rid of the sticky note. I got stuck on that for a whole cycle!