This is a Destiny The Witch Queen-themed box that I designed. Once the card is inside, it is impossible to remove it without a hammer or other such tools. It requires you to make a stop mid-print to place the gift card inside so that it can become encased. As of right now, printables does not support Gcode files with optional stops. If that changes, I will upload a model that is plug-and-play to make it easier for you to print. After slicing the model, with the witch queen logo on the bed, look at the first layer that covers the card slot. Make the optional stop a layer before that. At 0.2mm layer height, I believe it was layer 44 for me. Also. If you want it to be harder to break, increase the wall count. Increasing the wall count almost always makes it stronger than increasing infill.
The author hasn't provided the model origin yet.