I actually picked this up in a separate package yesterday, but the Special F/X Blue was definitely the high point:
This is the Fractal Materials leather parallel, but with a twist. The card is serial-numbered to 1,000, but the first 100 were die-cut. I have the non-die-cut version and now added this one. The fact that the card has a leathery texture is that much better. It is a cool card, an interesting gimmick that Donruss attempted in their last year with a Major League license for a couple of years.