The beer girl at the Japanese baseball games are there to carry it around. They run through the stands with a small keg on their back and cup dipenser one one side and the tap to the keg clipped to their hip. The keg's bigger than she is most of the time but they do usually choose the cute ones for this job so it's not too bad.
Watching some 90lb 80yr Japanese woman drain one of those 4l beers at a picnic is riot, BTW. 8l is pretty respectable, can you get it from the vending machine, cause that's the kicker. Next machine over has ****, too.