The Polaroid Z2300 image via Brit.co

Nothing beats the old fashioned Polaroid with the old fashioned square photographs, of course. But....
This new Polaroid model (Z2300) might come close: It combines the possibilities of a digital camera with direct print. Which means you customize your photo's by cropping, adding borders, filters or change lighting before printing them (business card size).

Yes, that's added to the gadget-wishlist.
(available through Urban Outfitters, for example)