Koss Koss KSC21 has a classic in-ear design. They are easily connected with a cord.
From Amazon
Koss KSC21 Sportclip Clip-On Headphones (3.5 mm Jack) for iMac/Laptop/iPhone/iPad/iPod/MP3 Players/Samsung/Smartphones - Black
Farnell
Koss 190056 Ksc21 Clip-On Headphones, Black
Discount Discs
Koss KSC21 ClipOn Headphones White
Cables 4 all
Koss KSC21 Clip On Ear Sports Headphones