I also forgot black, or is that just for baseball and basketball? Seriously, though, I think gold shows up better. Plus, its better to wear lighter colors early in the season when the temp is 99 at kickoff. Good luck, Marsheezi.
If you could design a shirt, and get the bookstores around town to sell it, then it wouldn't be very difficult to get it accomplished. Texas A&M does something similar to that with there Marroon out game every year. There design is pretty simple. It's marroon and say "Marroon out" on the front, and has the date of the game. Anyway, I think a gold out or purple out would be a great idea. White doesn't make a whole lot of sense. Every team has white.