By Phoebe Arslanagić-Little They sell out in under four minutes. In the US, people are thronging about the frail Target display stand, grabbing three or four at a time. In other clips, queues stretch down the street, fights break out and small children are shoved ruthlessly aside. There is a lively trade on Ebay reselling these coveted items at an extreme mark-up for those who just couldn’t make it to the store at 8am, or were thwarted by a soccer mom with the pitilessness of a marauding Viking. And the object of the crowds’ desire? What shape does this Holy Grail, this One Ring, this Unobtani…