5th East, The Children of Florey, and 3rd East, Tetazoo, found it amusing to roll heavy objects across their floor at all hours of the day and night, creating loud thumping that can be heard throughout the East Parallel. These objects include, but are not be limited to: the Ultrabuster and octagons.
While the origin of the octagons is unknown, their propensity to transfer from hall to hall means that just about every floor has had the opportunity to play with them. This also means that they come and go with the wind . . . who knows what halls have octagons these days. I think that most of them have been grunged a while back.