LOVOON Silk 3D Printer Filament pla Shiny Rainbow PLA Filament 1.75mm Color Change by Length PLA 3D Printing Filament Multicolor Shift Cyberpunk Purple/Brass/Green/Ice Blue
Perfect print, right out of the box. Printed on Bambu P1S at 210 degrees. No stringing, blobs or any other defects.
I saw some color change on the benchy, but you'd need a somewhat larger print to see much change.
The only negative is that it doesn't come with a resealable bag.