If I'm understanding you correctly, you want to create a Kickstarter for just playing card iconography - digital images of playing card pips, courts, etc. done as images and wallpapers.
There's a lot of that available for free on the 'net now - getting someone to pay you for it will be more of a challenge. You might be able to sell your images to a stock photography website, a clipart site or something like that, but I couldn't even imagine how much you'd get for it - I don't think it would be a lot. It's the classic case of trying to sell coal to Newcastle, a place legendary for coal production...
You'd do better to come up with an idea for a deck design, I think - a full-blown deck rather than just the parts of a deck. Come up with a timely and original theme, preferably something popular enough that there'd be demand for a deck based on it. If you're going to try a theme that's been done before, then you'd really need to make it somehow better than what came before if you want to stand a good chance of success. It's not impossible, mind you - it's just challenging. Lots of people remember the first team to climb Mount Everest - very few remember the 1,429th team, unless they do something like parasail off the peak, launch Burning Man Nepal, etc.
Whatever you do, don't automatically equate "unique" with "good" - there's a lot of very unique deck projects out there that just go nowhere because they're original but not appealing to the audience to which they're being presented. You need both good and unique!