The Original 3Doodler - 3D Doodler Pen ABS Filament, First Edition

I plug it in and it seems to work just fine.

32-Color 3D Printing Pen 2.85mm PLA Filament Refills, 160pcs Total 48M - for 3Doodler Create

3Doodler Create+ Essential Pen Set – Maker Maven

I plug it in and it seems to work just fine.

The Original 3Doodler - 3D Doodler Pen ABS Filament, First Edition Fast Ship

Grades 1–8 Bring ideas to life by doodling 3D shapes and designs. With the strands of colorful plastic in this pack and the compatible 3Doodler Start+ Pen, you can add dimension to any project or personalize your belongings. The low-heat, BPA-free and non-toxic plastics are completely safe for children to apply on almost any surface or material. It can be easily removed, though will adhere firmly to some clear plastics. The plastic extrudes to six times the original length, so one 6 in.

3Doodler Eco-Plastic Mixed Bag-Fire & Ice

THE ONLY CHILD-SAFE 3D PEN: Designed with no hot parts completely safe for kids aged 8+. Pen nozzle and plastic can safely be touched with no burn

3Doodler Start Essentials 3D Pen Set For Kids with Free Refill Filament - STEM Toy For Boys & Girls, Age 6 & Up - Toy of The Year Award Winner

2022 High-Quality 3d Print Pen Filamen 1.75mm PLA 20 Colors 100M

The Original 3Doodler - 3D Doodler Pen ABS First Edition

The Original 3Doodler - 3D Doodler Pen ABS Filament, First Edition

Intro to 3D pens - 3D Pen Hub