The other answerers are right that older people are absolutely not going to use itunes cards. You're wasting your money. Also, I'm in my 20s, and I don't use itunes at all either.
I have an iPhone, but I get all my music from other sources. I've received several itunes cards as gifts over the years, and I've always just regifted them or given them away. This would be a very expensive waste of money.
Wedding favors are completely not necessary. If you really want to do them, make it something a heckuva lot more heartfelt than a freaking gift card. Make homemade jam or salsa or get jars of local honey.
Make it a cookie or brownie mix, or just let people know you'd like them to take flowers from the ceremony home. I've seen brides give sunglasses or flip flops. Personally, we're having oriental fans.
I'm getting married outdoors in the South in July, so people will at least use them during the ceremony even if they don't want to keep them. ITunes cards is a really, really bad idea. Sure, some people with think it's nice, but I'd be willing to bet your 13 year old cousin Suzy would wind up asking everyone else for theirs so she can download every Justin Beiber song ever.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.