Nes Link gift card holder.

thingiverse

I recommend printing the files named "Lonk" and "Lonk platform." The platform should be printed sized up by 1-2% for easier fitting. If you decide to print the whole thing in one go, there should not be an issue as long as you print it facing up and have good leveling and bed adhesion. This works well with e-shop cards and such for Christmas/birthday gifts.