Original make is from thingspatprinted https://makerworld.com/en/@thingspatprinte .
Below are his instructions on how to print and I added some links to purchase the materials on AliExpress for cheap
Build Difficulty: Easy
These are STL files used to create the 3D printed Buffalo Neon LED sign. Entire model is around 16 inches wide, 10.5 inches in height. Includes channels on the back to run wires for the connection between LED strips. Other materials used to build are listed below. I printed in 2 separate prints and used a soldering iron to melt the pieces together.
Neon LED strips used:
Red and Blue, 1 strip of each is enough:
https://s.click.aliexpress.com/e/_Dc7n4Mf
12 volt Power supply:
https://s.click.aliexpress.com/e/_DBXqOOT
Cable to attach end of Neon LED strip to on/off switch:
https://s.click.aliexpress.com/e/_DCysHnD
On/Off Switch:
The user re-uploaded this model. The user is not the original author of the model.