Somebody once told me "if the Death Star had a tube station, it'd be Westminster"; and anyone who has passed through the terminus will know this holds true. It's a monolithic concrete bunker with cantilevered steel beams, industrial uplighters and scissored escalators. Subtle it is not.
In this respect, if the Death Star needed a vacuum cleaner, it'd be spoilt for choice. Almost every bagless cyclone machine on the market seems to have several dozen conical protrusions and articulated joints, with flashes of patronising neon colours around every gasket, bolt and wheel nut.
We're not designing Lloyds of London here. Vacuum cleaners should be more like the well turned out domestic staff that use them; unobtrusive, quiet and reliable. It's why I was drawn to the top of the range Mach Zen 2 by British firm Vax.