I have my white temporary ones and don't expect my new blue ones until the December-March range. I always assumed they would be plastic. If not, I'm going to have to lamanate mine or it won't last!!
We finally received ours last week! I was beginning to worry as our temps expired and our first DVC trip is in less than 2 weeks...WooHoo. We purchased SSR in February, closed in July and the card came about a month later. We feel "official" now. It took a longggg time! The blue cards are plastic/laminated like a credit card but thinner.