This pen draws in 3D.
Looks cool as hell!
https://www.kickstarter.com/projects/1351910088/3doodler-20-the-worlds-first-3d-printing-pen-reinv
Looks cool as hell!
https://www.kickstarter.com/projects/1351910088/3doodler-20-the-worlds-first-3d-printing-pen-reinv