You could buy robot spiders forever at this point, e.g. [1]. The drawing demo in the video looks neat though.<p>[1] <a href="https://www.tested.com/tech/459288-inside-adam-savages-cave-robugtix-t8-spider/" rel="nofollow">https://www.tested.com/tech/459288-inside-adam-savages-cave-...</a> (2013)