Sparkly Pants is a mod based on a joke by 1SDAN made in the "What's new in modded Minecraft" thread on the FTB Forums. It adds a pair of pants that sparkle.
You know, everyone adds functional backpacks and shoes, and some add helmets of that too. But what really grinds my gears is the lack of respect for pants. Well I won't stand for it anymore! Why haven't we gotten something like Sparkly Pants that instantly make you a Pop Sensation