What is the easiest and most cost efficient way to manufacture this?

Hey everyone, I’m pretty new to the world of manufacturing and was hoping you more experienced people would be willing to give me some advice. There is this LED sign that I want to be made so I can sell to my customers but I’m not sure how I should even start. Here is the product:

https://www.etsy.com/listing/829125199/extra-large-led-lighted-xbox-controller

Not sure what would be the easiest in terms of manufacturing this, but I would love to hear what you guys think I should do. If you want to shoot me a PM to discuss more I’d be very thankful for your help