Advanced Armor/Crafting

So, Ever tired of just normal enchantments, well, this is an add - on. I'm going to use Diamond armor for this, so. You can make an advanced crafting table (Mojang, you can decide the recipie for it) where you can add for example (This was just an idea, i know there is knockback) spikes on the armor, it lowers the effects of enchantments (Only by a bit to not make it overpowered), however if you where wearing it for example, you where mining diamonds and a creeper explodes behind you, these spikes would have a knock back effect. These will wear of over time. In the advanced crafting table there is NO recipe book so you have to find them yourself! To put it on (Again, Mojang, you can decide this) these new "items" you can either put it in your off - hand and click, or hold it over your current armor peice in your inventory!  
I hoped you enjoyed reading this!