The origin of the Power Booster Rod!  Sort of.  I kind of like the PBR being, you know, just a stick that has magic powers for no real reason.  I loved its absurdity.  And so even while giving it this origin point within Jason’s home universe, I make a point to establish that the PBR was already pretty weird.  It’s just there, already sparkly, randomly in the middle of a back alley in London.  I let myself have it both ways.

just like your mom