We installed our first window for Topshop a little while ago.  A huge nest constructed from mixed cylindrical materials; matte white wood, gloss white & chrome metal, clear and frosted acrylic rod.  The nest travels overhead from the main window at Topshop Oxford Circus, into the store & around a pillar into a display pod. White neon light pulses around the nest and into the store.  It's only in for another week so get down & see it whilst you still can.