Stackable container printed in vase mode.
Scale to the desire size. I recommend if scaling below 50% do so in the following order: scale XY to 50% independent of Z, use the cut tool instead of scaling Z to get the desired height. When scaling the Z the chamfer that allows these to stack is all but destroyed. This causes 2 problems: the boxes don't stack and printing that chamfer is no longer at an angle that can be well printed causing gaps.