Lycanites Mobs by Lycanite (Richard Nicholson)
Lycanites Mobs is a project that adds a wide range of new mobs to Minecraft. The mod adds a group of mobs to each specific biome type as well as other locations such as from Fire or Lava.
Mystical Tools Mod by Proxerater, MCreator
This mod is quite different from others.. Explore it for yourself.
Conglomerate by SnappyDragon (Pengu61151), Judacraz
This KAGIC add-on adds in a variety of new gems.
Armor Sound Tweak by InsomniaKitten
Play the respective equipping sound when (un)equipping armor in a GUI
Crafting Redstone by JasminePlaysMC
This is a way to craft redstone in the game so you can make getting redstone for the machines easier!