Earbud holder core
thingiverse
UPDATE 9/3/17 I reduced the z-height size of the Core based on feedback from others, matching it better to the cover pieces. I replaced the core with a v2. Check out https://www.thingiverse.com/make:378307 to see the one I made and now use. I'm a fan of Sneakypoo's Earbud Holder (http://www.thingiverse.com/thing:36321) - it works great. My current earbuds don't fit or work with the core design though. After seeing Nikolaev's design (http://www.thingiverse.com/thing:2156648), I decided to create a compatible core inspired by his, using the legs from Sneakypoo's design for my needs.
With this file you will be able to print Earbud holder core with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Earbud holder core.