SCRIB3D
SCRIB3D Pen Filament Refills, 20 Colors, 16 Feet Per Color, 1.75mm PLA, Works with SCRIB3D, PIKA3D, MYNT3D and Most Other 3D Printing pens
PIKA3D
PIKA3D PRO 3D Printing Pen - Includes 3D Pen, 5 Colors of PLA Filament Refill with Stencil Guide and User Manual, White