What are your favorite fancy playing cards?

In your comment, include: A) Large (jumbo/poker) size? High readability or no? B) Would you actually play with them (as opposed to a collector's item)? C) Any special materials? Foil backs, made of paper/plastic/gold, etc. D) Price?

And of course anything else you want to say about them; quality; feel; design; etc.

Edit: thanks everyone for the great suggestions! I have checked out pretty much every one of them. I was already really turned onto some of these but learned about a lot of new ones as well.