Woppit I have some you can have – pair of Senheisser MM80is. They are in ear, noise cancelling headphones, so perfect for travelling. They’re about a year old; I replaced them with the P5s.
What I would do is offer them to you on a ‘make a contribution to charity’ basis, say something around the £25-30 mark (they are around £100 new).
Alternatively you can have a pair of much older Senheiser phones that I’ve got lying around, again for a charity contribution of £5; they are circumaural, headband. Ping me your address and I;ll pop em in the post to you.
Charity of choice woud be Help For Heroes. You can make the donation and then send me the link.
Edit: ignore me, sorry didn’t read your post properly so didn’t see you’d already bought something.