The original model is precisely what I had been looking for (a simple box to store and protect polaroids temporarily), but magnets are awesome, so I had to implement them.

The box is made to hold 4.2 x 3.5 in (107 mm x 88 mm) polaroids, but anything smaller works as well.

Magnets needed:
6x2 mm round magnets AMAZON LINK.
 

Preview photos printed with Bambu P1S