Because I could, I was bored, and it was funny, I have also made a cobblestone generator, right next to Stuffman's to boot. Although it's not as fancy (It's made of dirt), it's more consistent, slightly slower, and the entire mechanism can be seen. Just simply flip the switch to turn on or off.
Edit: I just remembered how to make a switchable clock :V
I could make the cobble generator faster but that'll have to wait until I get back from the trip.