Heck no! We tried that. It didn't work! Sockman's are custom tailored to PERFECTLY fit a standard deck of card's contours. We have tested MANY designs, and have found the perfect way to make a card sock that is snug, leaves no excess fabric in the toe box, and more.
At $10,000 the first deck will be unlocked. A matching red-striped back design. At that point you'll be able to either add it as an add-on through backerkit, or wait for new pledge levels that will become available that include cards and socks together.
Don't see the answer to your question? Ask the project creator directly.