I don't think collar stays are going to help, at least not in this case. Actually, they'd probably have the opposite effect. Heavy collar stays would just weigh down the collar more, and prevent it from standing up. The look he is going for is achieved through a shirt with a high collar that is made from thick, sturdy fabric. Collar stays only help the collar tips stay straight, it isn't going to help it stand up at all. So... I'm guessing you didn't have a look at the Wurkin' Stiffs site, eh?