eBay with Altatac has the 2-Pack Vibe VS-060-MIX Juicys Comfort Earbud Stereo Headphones (6 color options) for $4 + $0 shipping = $4 shipped. Features 9.5mm drivers, 16ohms impedance, 100 dB sensitivity, 20Hz - 20kHz frequency response, and 1.1m cable.
The last time I stuck something juicy in my ear it did not turn out well.