ATV LED Stick: I used a snow stick, cut it to around 2ft. No need of spring in the base. Printed 40 disks to give substance to the stick body and that so I can roll around them the LED strip. Once done you get heat shrinking tube 1 inch wide 4 ft, and cut as per stick length. Next you insert the stick in the tube, apply heat until uniform shrinkage and that's mostly it. Install the cap. As well insert stick in the base. The base has one compartment for micro controller (D1 Mini Pro 8266) and one compartment for voltage reduction from 12V (from ATV battery or brake lines) to 5V (micro controller and LED strip voltage). I just fastened the base lid with a couple of self drilling screws.