Willber
1000+ Head-Fier
BTW, saw this randomly on Aliexpress, anyone want to take a go at it? They cost about $19 USD.
https://www.aliexpress.com/item/New-In-Ear-Earphones-Stereo-Noise-Cancelling-Ear-Buds-Diy-Mp3-Auriculares-3-5mm-Ecouteurs-Wired/32717264953.html
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@Danneq has them:
http://www.head-fi.org/t/441400/earbuds-round-up/11565#post_12917828
Edit: Beaten to it.