Here is a very nice on-ear headphone that sells for $28 USD, in the U.S. It should be available world-wide. The downsides are 1) Very lightweight and plastic, with a possibly fragile non-detachable cable, and 2) A neutral-to-light bass response. All else is good to excellent.
http://www.hifiheadphones.co.uk/com...on-ear-portable-stereo-headphone-review.4328/
http://www.hifiheadphones.co.uk/com...on-ear-portable-stereo-headphone-review.4328/