Brights
_Xenon

Adds bright stuff

Banshee
ElCeejo

Adds Banshees, a ghostly mob that haunts pine forests

Portal gun
AiTechEye

Portals and stuff

faction items
GigaByte

add some items to be used as prizes for special events or player achievements

Lakemaker Mod
sunnysideup

A TNT block that makes lakes/bodies of water.

Silver
Jackknife

adds silver ore and tools

Stair Pick
BrandonReese

This is a specialized pick for making stairs.

Too many ores
TeufloV

This adds 53 new ores. But most of them are useless.