a funnel for a cola bottle
thingiverse
You can secure a screw thread funnel on a Coke bottle to prevent it from falling off, and it works great with the Birdfood Dispenser available online. For more details, visit https://www.youtube.com/watch?v=BCb5Ys7afG0 or check out the 3D printed design at http://www.thingiverse.com/thing:496741. The funnel's threaded attachment is perfect for dispensing birdseed without any mess.
Download Model from thingiverse
With this file you will be able to print a funnel for a cola bottle 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 a funnel for a cola bottle.