The P1X3M1011EU extension cable for SONOS will allow you to put you SONOS speakers exactly where you want, not just where their power cables will stretch to. The cable will allow you to get rid of the ugly extension blocks and choose this bespoke, neat...
Flexson FLXP1X3M1011EU EU 3m Extension Cable for SONOS PLAY:1 Single in White
Flexson FLXP1X1M1011EU EU 1m Extension Cable for SONOS PLAY:1 Single in White
UK 0.35m Flexson Short Power Cable for SONOS PLAY:1