Soleyin by Creality 1kg Spool 1.75mm Ultra PLA 3D Printer Filament (Black) 6 for $33 + Free S/H

Soleyin by Creality 1kg Spool 1.75mm Ultra PLA 3D Printer Filament (Black) 6 for $33 + Free S/H. Thumb Score: +30. You have to buy $25 worth of items to get free shipping even if you have Prime, but it's worth it. The 40% off is applied at checkout. [amazon.com]