Thanks for the hint, eventually i stumbled upon the note about Pixelstick in the article, never heard of it before. They had a successful Kickstarter last year,

Thanks for the hint, eventually i stumbled upon the note about Pixelstick in the article, never heard of it before. They had a successful Kickstarter last year, the video briefly introduces the tech and shows many more applications: https://www.kickstarter.com/projects/bitbangerlabs/pixelstick-light-painting-evolved https://www.kickstarter.com/projects/bitbangerlabs/pixelstic... Now I want one!