Paint Can Spout
thingiverse
I typically pick one of these up at Walmart for a few bucks, but they were sold out the last time I visited, so I printed this and attached it to my paint can lid using silicon adhesive. When working with solvent-based paints, I'm cautious to keep the cap threads spotless before sealing it tight, as it's designed to work best with latex paint.
Download Model from thingiverse
With this file you will be able to print Paint Can Spout 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 Paint Can Spout.