Wandered into Lidl today and spotted a 'Bluetooth Bathroom Speaker' at £8. It sticks on the wall.
I bought one with a view to adapting it for one of my many radios - sort of a Bluetooth gram input!
Anyway, I was most suprised at the sound quality and loudness, it almost seems a shame to pull it to bits!
They had them in pink, blue and black! and if you are considering similar I would recommend them.