I'm not going to take a lot of time to write this for my not so simple project. A prison mine which gives you exp for each block you break and resets after 300 sec. Also, you'll get an upgraded pickaxe in hotbar slot 0 every 10 levels max of 40.

EDIT: Guys and Gals v2 of the Mine is Up. Shown in the video. youtu.be/4g10QltCbzI