For prop nerds, NTTD doesn't seem to provide much in the way of potential collectibles based on one viewing.
Sure, you've got the watch (that most can't afford) and the Saffin mask, but there really is little else. Not much in the way of paper props either.
I think in the end, maybe the USB drive could be found and replicated and with decent reference, the Heracles container. Anything I'm missing?