I've just bought a set of Puma League On-Ear Headphones at Tesco Stourbridge for £6.25 down from £25.00. Available in red or blue. I'm not sure how good they are but they look well padded, so will be comfortable, at least .
This is an instore only deal as still full price on Tesco Direct.
I realise that every store won't have these but hopefully some of you can get them. Perhaps check first with the freephone number for 'Tesco Stores Customer Service Team'.