I have created an LED speaker cover for the #3DPNSpeakerCover challenge You can use these LED strips https://www.amazon.com/ALITOVE-Individual-Addressable-Programmable-Non-Waterproof/dp/B01MG49QKD/ref=sr_1_2?dchild I used double sided tape to keep them in place The bottom part can be printed out in any plastic but the top one must be printed in transparent petg with honeycomb infill at 15-20 infill. Unfortunately I didnt have petg so I used translucent pla for my biuld. You can see the wiring in the picture https://myalbum.com/album/ge6PUSHHuZJ7 The leds connect to an arduino digital output pin is d2 How it looks when on https://youtu.be/XfXnyQlaaZc Code: https://create.arduino.cc/editor/ignas19s/5e2b0924-e1dc-42a7-b49c-4fa829cd032e/preview I would recommend using transparent/translucent petg for the top part and using honeycomb infill at around 15-20 %. It adds to the look and makes it stand out in my opinion since you can't find parts on the market that use infill. This project took me about 10- 15 hours not including print times