Danger 10,000 Volts Sign Posted on October 9, 2020February 14, 2021 By Four Nine Woodworks Spice up your Halloween with this custom 24″x10″ solid wood carved and painted sign. Inspired by Jurassic Park, the “Danger 10,000 Volts” Sign pairs well with the inflatable dinosaur skeleton and warns those passing by to keep their distance!