Viveporter by Thorinair
Adds a special teleportation device called the Viveporter which lets you teleport when using your HTC Vive headset, replacing the default Minecrift functionality.
Ender Tools by jf2000
The Ender Tools Mod adds Ender Ores which spawn below layer 40 and drop Enderfragments. It adds many new tools, which help you in early Game, like the Enderpick, or are pretty mid-/lategame, like the Teleportation Wand.
Natural Nether Portals by Insane96MCP
Makes (broken) Nether Portals spawn randomly in the nether and the overworld
Enderfragments by Janek
The Enderfragments Mod adds Ender Ores which spawn below layer 40 and drop Ender fragments. It adds two new tiers of tools, the Ender Tools and the Ultimate Ender Tools. Ender Tools are as good as Diamond Tools, but have much less durability. They are crafted using Ender fragments. Ultimate Ender Tools are double as fast as Diamond Tools and deal more damage, but are also really expensive.