I have created: a sign, an armor set, a sword, a bow, and a fridge (just a dispenser with infinite food) and a potion.
To make the fridge, place any block (I'll use iron for example) and place a dispenser on top, place a command block behind the dispenser and enter the fridge command below, put a button on the iron block and, boom, you have a infinite fridge.
The potion never ends unless you drink milk and if you do than the sign will give you another one, as well as a cake, diamond and an iron ingot.
The combat related stuff, is overpowered and greatly enchanted.
There is also a cool pickaxe, a flint and steel of greifing and a lucky fishing rod in there.
I have been doing all this from a computer that is to slow to run minecraft, so that means I haven't tested it yet but I will very soon!!!!!
Credits to MinecraftingVW on youtube, for the infinite fridge design. Video: https://www.youtube.com/watch?v=Jx2F4RHzFB8&nohtml5=False
Any problems, just put in the comments. Any ideas for commands, just comment and please enjoy!!!!!!