Color War was the craziest time! I feel as though the event speaks for itself, but I just wanted to give a few helpful tips and tricks I would suggest if you were going to throw a Color War for your ministry.
1. There are lots of powdered color companies out there, and if you have the budget and don't want to spend the time mixing ingredients, go ahead and buy individual packets for everyone, or whatever you think is best for your ministry. THAT BEING SAID, if you want to save money, buy 5 lb. bags of colored powder and then mix it with 9/10 parts cornstarch. The powder will not be as vibrant, but it'll be so. much cheaper.
2. If you choose to mix the ingredients on your own. Repeat after me: CORNSTARCH, NOT CORN MEAL. Please know there is a very large difference even though their names are very similar.
3. I feel as if I shouldn't need to address this, but I will. If you are putting this event on, this is a great opportunity for you to encourage your students (leading up to the event) to invite their lost friends to Color War! That way, you can present the gospel before any color is thrown! 
4. If you (hopefully) choose to present the gospel at your Color War event, it is very wise to have a buffer in-between the invitation and the throwing of powdered paint. If you dismiss straight from your invitation, the people making the decisions might resent you for making them late to all the fun! (even though getting saved is the most fun, we're just trying to think like a student here!)
5. If you are financially able to, invest in face masks, protective eyewear, and extra white shirts. It may look all fun and games, but the second powder gets in your lungs and in your eyes... you'll be begging to get out of that cloud of doom. 
6. HAVE WATER ON HAND! Number five and six go hand-in-hand. The colored powder will be EVERYWHERE and you and your students will not be able to escape it. So just, have water on hand.