So it occurs to me one of the major logistical limitations that Santa runs into is the volume of gifts even more so than the weight...particularly once they are gift wrapped. Think about how much empty space there is just in foot balls, basket balls, soccer balls, rugby balls etc etc.
Expanding that to all gifts there is just so much wasted space and from a logistician's perspective wasted space is a killer.
That all in mind consider this.
Santa is actually a very advanced robotic micro factory. Rather than building presents all year long he instead travels to homes and like a giant, jolly, dressed in red, 3d printer creates the toys on site.
So my question is this, What resources (type not volume) would santa require to create the standard fare toys. Electronics, balls, stuffed animals etc etc.
Santa's robotic form is able to keep virtually all known components in a liquid state within his frame and sleigh (he restocks his internal resources from the sleigh...