Ok, so I'm shooting a movie in a set made from almost entirely white bricks.  But I realized that there's a problem.  You see, i've had my legos for a long time, and when you have white things--for a long time--they sometimes sorta turn yellow... ish...

Do you guys have any method of making them all look the same color... ish?

i know, it's sorta a stupid question, but i thought some of you might have some suggestions...  or something.....