Here's a video of it in action...https://www.youtube.com/watch?v=YgA365heTFEThis is a extruded LED Batman sign I printed on my dual extruder... I took a JPEG of the Batman sign and traced it in Solidworks... I then extruded and filleted the Batman sign and saved it as its own STL to be used in dual extrusion... I then designed a plate around the Batman sign, added holes for screws and save that as its own STL... Lastly, I design a shell to go around the plate and Batman sign, the shell has aligned screw holes so it can be fastened to the plate...I then printed the shell in regular ole black PLA on my Rep 2... And I did the dual extrusion using the same black PLA for the plate and I used Bendlay (link below) to print the Batman sign... I used Bendlay because it is extremely translucent (91% of light passes through)...I then hooked up an RGB LED strip, wrapped it around the inner shell and hooked it up to an IR receiver so it can be controlled with a remote...Bendlay Link:http://www.amazon.com/MatterHackers-BendLay-Filament-1-75mm-MakerBot/dp/B00K1NRCIY/ref=sr_1_1?ie=UTF8&qid=1435347958&sr=8-1&keywords=bendlay&pebp=1435347954416&perid=1WG2SRVP9TGP9WAM748WI've also made the following logo's, designs for LED hookup...Here's some links to other LED logos I made like this one...Batman - https://www.youmagine.com/designs/batman-led-light-nightlightSuperman - https://www.youmagine.com/designs/superman-led-light-nightlightIronMan - https://www.youmagine.com/designs/ironman-led-light-nighlightSpiderMan - https://www.youmagine.com/designs/spiderman-led-light-nightlightPunisher - https://www.youmagine.com/designs/punisher-led-light-nightlightStorm Trooper - https://www.youmagine.com/designs/stormtrooper-led-light-nightlightTransformers Autobot - https://www.youmagine.com/designs/autobot-transformers-led-nightlight-lampTransformers Decepticon - https://www.youmagine.com/designs/decepticon-transformers-led-nightlight-lampMakerFaire Robot - https://www.youmagine.com/designs/maker-faire-led-robot-sign-nightlightAndroid Robot - https://www.youmagine.com/designs/android-robot-led-nightlight-lampApple Logo - https://www.youmagine.com/designs/apple-logo-led-nightlight-lampMortal Kombat - https://www.youmagine.com/designs/mortal-kombat-led-light-nightlightJeep Logo - https://www.youmagine.com/designs/jeep-emblem-led-light-nightlight