EDIT 3(about another minecraft subject): So I made my first actually functioning plugin. I never thought I could accomplish it . So far it only does 2 things. /Hello, which replies with "Hi." and /cloudstone, which gives you some mined cloudstone(sugar, but with a damage value of 1). The plugin will add minable clouds, named cloudstone. You can craft a cloudstone ingot(looks like an iron ingot, but also has a damage value of 1) with it which enables temporary flight until it burns off. The only thing with cloudstone I added yet was a command to get the mined cloudstone. I still have to make the rest. I plan on keeping it as a personal plugin, but if people get interested, I might release the .jar.
Thats a really cool idea, why not add some things you can graft with it, like... idk... Bottle o' happy ? (potion that makes you jump really high and run really fast)