Mika3d via Amazon has 4-Count 250g Mika3d Silk Shiny 1.75mm 3D Printing PLA Filament Spools (Various Colors) for $18.99 - 30% when you clip the coupon on product page - 5% with Subscribe and Save = $12.99. Shipping is free w/ Prime or on orders $35+
Silk Yellow, Lime Green, Orange, Sky Blue...