Tanga offers the Vibe Juicys Comfort In-Ear Headphone 2-Pack in six colors, model no. VS-060-MIX, for free plus $4.99. That's $2.50 per headphone and the lowest total price we could find. (The per-unit price is slightly under our mention of a single pair from January.) Features include a 3.6-foot cord, 20 Hz to 20kHz frequency response, and more. They will ship in random colors.

Need more than two? Geeks offers a Vibe Juicys Comfort In-Ear Headphone 24-Pack in six colors for $22.99 plus $6.75 for shipping. That's $1.25/set and the lowest per-unit price we've seen.