The 1970s is alive and well and living on eBay in the form of this Harvey Guzzini Mushroom Ceiling light.
The perfect addition to a '70s-inspired room, the light is made of of that mushroom-coloured plexiglass shade, within a chrome framework and with a chrome concave underside. Just screw in a bulb and you are away.
It measures around 50 x 45cm and is described as being in 'good vintage condition'. If you want it, bidding is at £49.99.