I'll admit it. It took me a minute or two to entirely get the reference on this shirt. But that's what makes a killer geek shirt, IMO: multiple levels of awesomeness. So yes, Princess Peach definitely doesn't have green hair in-game. Hint: She's punk. And yeah, I ordered one. ($15 shipped in the USA)
God Save The Princess [shirt.woot!, link expires 8/16/2011]