Binding of Isaac: Rebirth Item Ideas 2 by A-Ithyphallophobiac on DeviantArt
I have found what appears to be a faded version of The Polaroid - as a trinket : r/bindingofisaac
How to Reach The New Final Floor "Home"? - The Binding of Isaac: Repentance - YouTube
Amazon.com : Polaroid Cameras Now I-Type Instant Film Camera, Film Photography, Print Instant Photo, Great As A Gift, Bundle with a Lumintrail Lens Cleaning Cloth : Electronics
Faded Polaroid!!! : r/bindingofisaac
Apparently gulping the faded Polaroid makes it unable to open the door in depths which I guess makes sense since you can't put it in the door if you swallowed it :