Depressed Coal for 1.15.1 and higher requires CoalAPI! Download it here
(note that this is a joke mod) This mod adds Depressed Coal and Depressed Coal Ore. To craft depressed coal, place a single coal ore in the crafting table to get 8 depressed coal (also works the opposite way). Mining or smelting the depressed coal ore gives you 3 depressed coal. Each depressed coal smelts 1 item. That's literally the entire mod.
1.12.2 version is made with MCreator https://mcreator.net/
While the mod is now managed by KrokoOnAir, the mod is still supported on my discord: https://discord.gg/EH8rxNE
I have a discord for these mods now: Klick!
KrokoOnAir´s Discord: Klick!
Edit: As of 1/24/2020, 1.12 support has been dropped. Every file will now be made by kroko, and I hope you trust them to make depressed coal better.