This shot by fitzhughfella was taken with an old box camera from the 1950’s, a Kodak Brownie Hawkeye Flash. On this particular shot, the lens has been reversed to give you the blurring on the outer edges and a sharp sweet spot in the center of the image. It gives an effect that you wont see on a Holga or Diana for a lot less money. These can be picked up on eBay for $10 to $15 and a couple of minutes with a screwdriver can give you this look. The instructions can be found here:
One thing to note, this camera originally took 620 roll film for a 6×6 negative. You can still use 120 film in this model but will need a 620 spool for the take up. Just remember to recover your 620 take up spool from the lab when you get your film developed!