I haven't trooped much as of late. There are two reasons for this. First, I don't have a lot of free time, as I manage two drug stores, but more importantly, when I was removing my armor from it's bin before my last event I discovered a great deal of yellowing on my bucket. I haven't felt comfortable trooping with such ugly armor. I recently bit the bullet and tried Retr0bright, an open source formula that uses easily available ingredients to reverse the UV damage that causes the discoloration. I figured others who have had this trouble would be interested in this so I created an Instructable outlining the process.
I'm not sure how appropriate it is to provide a link to Instructables, so if it is not allowed I can write up a proper tutorial on here.
Here is the link to my project: http://www.instructables.com/id/Restoring-yellowed-Stormtrooper-armor/
Also, if you feel so inclined, feel free to vote for me in the fix and repair contest.
Thanks,
TK-5246