I've used a faux leather effect I've been meaning to try for a while, since I saw it demonstrated on Create & Craft TV, and there is a video tutorial on the Crafters Companion blog. I really enjoyed making the "leather" background, which is made with heavyweight kraft card, some water/glycerine mixture and lots of scrunching, inking and embossing, but I have to say that now it's finished, it doesn't really look or feel as much like leather as I'd hoped it would. I think it's come out more like aged bronze. However I still love the look of it and it is perfect for a masculine card!
I am joining in with Let's Hear it for the Boys at Crafty Gals CornerAnything Goes at The Pink Elephant