Lucky Block Mod 1.14.4/1.12.2 adds just one block, yet over one hundred possibilities to Minecraft. Just mine the Lucky Block, cross your fingers, and hope it will drop the items you need. But now, with this new version, you can expect more than just items. The Lucky Block mod can spawn animals, monsters, other entities and even structures. From giants to fireworks, sticks to diamonds, the Lucky Block will give you an exciting experience every time you mine it. <----- copied from the website
http://www.9minecraft.net/lucky-block-mod/
The download links are at the bottom of the page
Hopefully you can add this, ive seen H2O Delirious using this mod
