Target Block Indicator
Better Noteblocks
Cauldron Levels
Directional Droppers/Dispensers
Distinguishable Wool/Concrete
Visual Daylight Detectors
Sticky Piston Sides
Directional Hoppers
Visible Tripwire
Redstone Levels And Groovy Levers
Jukebox
Directional Observers
Composter Levels
